5.what is the probability that more than 2, but fewer than 6 people live in a randomly selected household?
6.What is the probability that 3 or 4 people live in a randomly selected household?
7.Two US households are selected at random. What is the probability that in both households there are 7 or more people?
8.Two US households are selected at random. What is the probability that in both households there are more than 3 people?
Homework Answers
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5.what is the probability that more than 2, but fewer than 6
people live in a...
8. If 200 people are randomly selected, what is the probability that more than 25% of...
8. If 200 people are randomly selected, what is the probability that more than 25% of them voted in the primary? 0.2004 Jo. 20x0.80 -0.0283 1-P(p<.as). 200 -0.0386 9. In the state of North Carolina, there are 6,674,209 registered voters. In the May 2018 Primary election, 957.627 people voted. What is the population proportion of voters? (Round to the nearest percent) population proportion = 957627 /6:674209 -0.14 10. If a random sample of 30 people from North Carolina is taken,...
5. Interpretation of a chi-square test for goodness of fit Suppose you are reading a study...
5. Interpretation of a chi-square test for goodness of fit Suppose you are reading a study conducted in the year 2000 about welfare recipients in the United States. The study consisted of a random sample of 199 welfare recipients, and provides summary statistics about various demographic characteristics of the sample, indluding household size broken down into five categories (one, two, three, four, and five or more persons in the household). You wonder if welfare recipients tend to live in different-...
question1: 92% of Sardinians live more than 80 years, & 34% live fewer than 90 years....
question1: 92% of Sardinians live more than 80 years, & 34% live fewer than 90 years. Determine the probability that a randomly chosen Sardinian lives more than 90 years, given that s/he lives more than 80 years. a) .58 b) .63 c) .68 d) .72 e) .77 question2: Suppose P(β=1)=.4, P(β=2)=.6 & X~U(0,β). Determine P(X < .8). a) .44 b) .48 c) .52 d) .56 e) .60 note: X ~ U(0, β) P(X < t) = t / β for 0...
or a large population of people, the probability distribution for the random variable X = the...
or a large population of people, the probability distribution for the random variable X = the number of meals a person ate yesterday and the assigned probabilities is given below: Meals, X 1 2 3 4 5 Probability 0.19 0.35 0.26 0.15 ? a) Find P(X = 5), the probability that a randomly selected person ate 5 meals yesterday. P(X = 5) = (b) Find P(X 2), the probability that a randomly selected person ate 2 or fewer meals yesterday. P(X 2)...
1. Suppose that 81% of the people in Houston live in the city and 19% of...
1. Suppose that 81% of the people in Houston live in the city and 19% of the people live in the suburbs. If the 21,000 undergraduate students from UH represent a random sample of the population, what is the probability that the number of UH undergraduates are from suburbs will be fewer than 4,000? (Hint: Apply normal approximation to binomial probability via CLT.) 2. Suppose that the body mass index (BMI) measure for adults is normally distributed with mean 21.7...
1. The table below gives the probability model for the distribution of total household income in...
1. The table below gives the probability model for the distribution of total household income in the United States. Total Household Income Under $25,000 $25,000 to $49,999 $50,000 to $74,999 $75,000 to $99,999 S100,000 or over Probabilit 0.223 0.188 0.138 0.179 0.272 Table 1. Total household income (from March 2012 Supplement, Current Population Survey) a. Check to see whether the probability model in Table 1 is legitimate. Explain what you checked b. What is the probability that a randomly chosen...
L) I'wo or fewer of 12 people have an adverse renction. b) None of them have...
L) I'wo or fewer of 12 people have an adverse renction. b) None of them have an adverse reaction. (4) The A random a) Find y that a restaurant patron will reqest seating in the outdoor patio is 0.40 sample of 7 people call to make reservations b) Find the d the probability that at mosit 2 of thein request outdoor senting probability that at least 5 of them request outdoor seating. telephone appeals for donations she knows from experience...
The probability that fewer than 37 of 162 eligible voters voted is __ #2 Assuming that...
The probability that fewer than 37 of 162 eligible voters
voted is __
#2
Assuming that the rate of 27.8% is correct the probability
that 464 or more of the 1520 adults have sleepwalked is ___
#3
Homework: 12MML: Homework Score: 0 of 1 pt 6.6.9-T 4 of 7 (3 complete) HW Sco Use a normal approximation to find the probability of the indicated number of voters. In this case, assume that 161 eligible voters aged 18-24 are randomly selected...
The probability a randomly selected individual in the US earns more than $82,000 per year is...
The probability a randomly selected individual in the US earns more than $82,000 per year is 17.6%. The probability a randomly selected individual in the US earns more than $82,000 given that the individual has a bachelor's degree is 31.3%. A. - Assign letters to each event and write each probability using statistical notation. B. - Are the events "earned a bachelor's degree" and "earn more than $82,000 per year" independent? Explain what test you used for independence and show...
a) The probability that a randomly selected household has one cat is (Simplify your answer.) b)...
a) The probability that a randomly selected household has one cat is (Simplify your answer.) b) The probability that a randomly selected family has more than one cat is (Simplify your answer.) A survey was conducted in which 125 families were asked how many cats lived in their households. The results are shown below. a) What is the probability that a randomly selected family has one cat? b) What is the probability that a randomly selected family has more than...
8. If 200 people are randomly selected, what is the probability that more than 25% of them voted in the primary? 0.2004 Jo. 20x0.80 -0.0283 1-P(p<.as). 200 -0.0386 9. In the state of North Carolina, there are 6,674,209 registered voters. In the May 2018 Primary election, 957.627 people voted. What is the population proportion of voters? (Round to the nearest percent) population proportion = 957627 /6:674209 -0.14 10. If a random sample of 30 people from North Carolina is taken,...
5. Interpretation of a chi-square test for goodness of fit Suppose you are reading a study conducted in the year 2000 about welfare recipients in the United States. The study consisted of a random sample of 199 welfare recipients, and provides summary statistics about various demographic characteristics of the sample, indluding household size broken down into five categories (one, two, three, four, and five or more persons in the household). You wonder if welfare recipients tend to live in different-...
1. Suppose that 81% of the people in Houston live in the city and 19% of the people live in the suburbs. If the 21,000 undergraduate students from UH represent a random sample of the population, what is the probability that the number of UH undergraduates are from suburbs will be fewer than 4,000? (Hint: Apply normal approximation to binomial probability via CLT.) 2. Suppose that the body mass index (BMI) measure for adults is normally distributed with mean 21.7...
1. The table below gives the probability model for the distribution of total household income in the United States. Total Household Income Under $25,000 $25,000 to $49,999 $50,000 to $74,999 $75,000 to $99,999 S100,000 or over Probabilit 0.223 0.188 0.138 0.179 0.272 Table 1. Total household income (from March 2012 Supplement, Current Population Survey) a. Check to see whether the probability model in Table 1 is legitimate. Explain what you checked b. What is the probability that a randomly chosen...
L) I'wo or fewer of 12 people have an adverse renction. b) None of them have an adverse reaction. (4) The A random a) Find y that a restaurant patron will reqest seating in the outdoor patio is 0.40 sample of 7 people call to make reservations b) Find the d the probability that at mosit 2 of thein request outdoor senting probability that at least 5 of them request outdoor seating. telephone appeals for donations she knows from experience...
The probability that fewer than 37 of 162 eligible voters
voted is __
#2
Assuming that the rate of 27.8% is correct the probability
that 464 or more of the 1520 adults have sleepwalked is ___
#3
Homework: 12MML: Homework Score: 0 of 1 pt 6.6.9-T 4 of 7 (3 complete) HW Sco Use a normal approximation to find the probability of the indicated number of voters. In this case, assume that 161 eligible voters aged 18-24 are randomly selected...
a) The probability that a randomly selected household has one cat is (Simplify your answer.) b) The probability that a randomly selected family has more than one cat is (Simplify your answer.) A survey was conducted in which 125 families were asked how many cats lived in their households. The results are shown below. a) What is the probability that a randomly selected family has one cat? b) What is the probability that a randomly selected family has more than...
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