Of all 3- to 5-year old children, 56% are enrolled in school. We are looking at...
Of all 3- to 5-year old children, 56% are enrolled in school. We are looking at a sample of 500 such children, and this is thought to follow a binomial distribution. Use the normal approximation to the binomial to find the probability that at least 290 of those children will be enrolled in school.
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Of all 3- to 5-year old children, 56% are enrolled in school. We
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32) According to American Airlines, Flight 215 from Orlando to Los Angeles is on time 90%...
32) According to American Airlines, Flight 215 from Orlando to Los Angeles is on time 90% of the time. Randomly select 150 flights and use the normal approximation to the binomial to approximate the probability that at least 125 flights are on time 33) of all 3-to 5-year-old children, 56% are enrolled in school. If a sample of 500 such children is randomly selected, use the normal approximation to the binomial to approximate the probability that at most 200 will...
please explain by steps! very confused 10) The average charitable contribution itemized per income tax return...
please explain by steps! very confused
10) The average charitable contribution itemized per income tax return in Pennsylvania is $792. Suppose that the distribution of contributions is normal with a standard deviation of $103. Find the limits for the middle 60% of contributions. 4:02 < Back Assignment Details STAT-10-06534 The Normal Approximation to the Binomial 11) According to American Airlines, Flight 215 from Orlando to Los Angeles is on time 90% of the time. Randomly select 150 flights and use...
In a family with 3 children, the probability that all the children are girls is appoximately...
In a family with 3 children, the probability that all the children are girls is appoximately 0.125. In a random sample of 1000 families with 3 children, what is the approximate probability that 95 or fewer will have 3 girls? Approximate a binomial distribution with a normal distribution 囲Click the icon to view the area under the standard normal curve table. The probability that 95 or fewer families will have 3 girls is (Round to four decimal places as needed.)
You are allowed to use Geogebra on this question. Heights of 10 year old children, regardless...
You are allowed to use Geogebra on this question. Heights of 10 year old children, regardless of gender assigned at birth, closely follow a normal distribution with mean 54.6 inches and standard deviation 6.8 inches. Round answers to 4 decimal places. a) What is the probability that a randomly chosen 10 year old child is less than 47.9 inches? b) What is the probability that a randomly chosen 10 year old child is more than 57.5 inches? c) What proportion...
Suppose in a local Kindergarten through 12th grade (K - 12) school district, 53 percent of...
Suppose in a local Kindergarten through 12th grade (K - 12) school district, 53 percent of the population favor a charter school for grades K through five. A simple random sample of 500 is surveyed. Calculate the following using the normal approximation to the binomial distribution (a) Find the probability that less than 200 favor a charter school for grades K through 5. (b) Find the probability that 260 or more favor a charter school for grades K through 5....
Sixty percent of all children in a school do not have cavities. The probability, rounded to...
Sixty percent of all children in a school do not have cavities. The probability, rounded to four decimal places, that in a random sample of 9 children selected from this school, at least 5 do not have cavities is:
Researchers were interested in estimating the mean body mass index (BMI) for 5 year old girls in a very large school dis...
Researchers were interested in estimating the mean body mass index (BMI) for 5 year old girls in a very large school district in Oklahoma. A random sample of size 61 five year old girls was drawn, and the sample mean BMI was found to be 17.4. Although BMI measurements are typically a little right-skewed, because of the reasonably large sample size, the researchers felt it was reasonable to use procedures based on the normal distribution. Based on previous information, they...
Researchers were interested in estimating the mean body mass index (BMI) for 5 year old girls in a very large school dis...
Researchers were interested in estimating the mean body mass index (BMI) for 5 year old girls in a very large school district in Oklahoma. A random sample of size 70 five year old girls was drawn, and the sample mean BMI was found to be 17.4. Although BMI measurements are typically a little right-skewed, because of the reasonably large sample size, the researchers felt it was reasonable to use procedures based on the normal distribution. Based on previous information, they...
Random variables are all around us, from the time we require to commute to school, to...
Random variables are all around us, from the time we require to commute to school, to the percentage of lecture material we remember for the exam, we can describe much of the world around us using probability. Project Statement: Find a random variable in your day-to-day life, call it X(w), and do the following: Describe X as either quantitative, qualitative, discrete, continuous, etc. Give the support of X (i.e. its possible range of values) Speculate on its distribution. Is it...
not sure how to do this O In a family with children the probability that all...
not sure how to do this
O In a family with children the probability that all the children are girls is apporimately 0.125. In a random sample of 1000 miles with children, what is the apposaimate probability that 100 or fewer will have 3 girls? Approximate a binomial distribution with a normal distribution TT Click the icon to view the area under the standard normal curve table The probability that 100 or fewer families will have 30 Round to four...
32) According to American Airlines, Flight 215 from Orlando to Los Angeles is on time 90% of the time. Randomly select 150 flights and use the normal approximation to the binomial to approximate the probability that at least 125 flights are on time 33) of all 3-to 5-year-old children, 56% are enrolled in school. If a sample of 500 such children is randomly selected, use the normal approximation to the binomial to approximate the probability that at most 200 will...
please explain by steps! very confused
10) The average charitable contribution itemized per income tax return in Pennsylvania is $792. Suppose that the distribution of contributions is normal with a standard deviation of $103. Find the limits for the middle 60% of contributions. 4:02 < Back Assignment Details STAT-10-06534 The Normal Approximation to the Binomial 11) According to American Airlines, Flight 215 from Orlando to Los Angeles is on time 90% of the time. Randomly select 150 flights and use...
In a family with 3 children, the probability that all the children are girls is appoximately 0.125. In a random sample of 1000 families with 3 children, what is the approximate probability that 95 or fewer will have 3 girls? Approximate a binomial distribution with a normal distribution 囲Click the icon to view the area under the standard normal curve table. The probability that 95 or fewer families will have 3 girls is (Round to four decimal places as needed.)
You are allowed to use Geogebra on this question. Heights of 10 year old children, regardless of gender assigned at birth, closely follow a normal distribution with mean 54.6 inches and standard deviation 6.8 inches. Round answers to 4 decimal places. a) What is the probability that a randomly chosen 10 year old child is less than 47.9 inches? b) What is the probability that a randomly chosen 10 year old child is more than 57.5 inches? c) What proportion...
not sure how to do this
O In a family with children the probability that all the children are girls is apporimately 0.125. In a random sample of 1000 miles with children, what is the apposaimate probability that 100 or fewer will have 3 girls? Approximate a binomial distribution with a normal distribution TT Click the icon to view the area under the standard normal curve table The probability that 100 or fewer families will have 30 Round to four...
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