An agency collects demographics concerning the number of people in families per household in a certain...
An agency collects demographics concerning the number of people in families per household in a certain country. Assume the distribution of the number of people per household is as shown in the table below.
| x | P(x) |
| 2 | 0.26 |
| 3 | 0.24 |
| 4 | 0.34 |
| 5 | 0.11 |
| 6 | 0.03 |
| 7 | 0.02 |
a. The expected number of people in families per household is
______ (Type the entire number, do not round.)
b. The standard deviation of the number of people in families per
household is ______ . (Type an integer or decimal rounded to
four decimal places as needed.)
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An agency collects demographics concerning the number of people
in families per household in a certain...
An agency collects demographics concerning the number of people in families per household in a certain...
An agency collects demographics concerning the number of people in families per household in a certain country. Assume the distribution of the number of people per household is as shown in the table to the right. a. Calculate the expected number of people in families per household in the country. b. Compute the standard deviation of the number of people in families per household. x P(x) 2 0.25 3 0.24 4 0.31 5 0.12 6 0.05 7 0.03...
An agency collects demographics concerning the number of people in families per household in a certain...
An agency collects demographics concerning the number of people in families per household in a certain country. Assume the distribution of the number of people per household is as shown in the table to the right. x P(x) 2 0.27 3 0.23 4 0.28 5 0.13 6 0.05 7 0.04 a. Calculate the expected number of people in families per household in the country. b. Compute the standard deviation of the number of people in families per household.
The standard deviation of the number of people in families per households is? An agency collects...
The standard deviation of the number of people in families per households is? An agency collects demographics concerning the number of people in families per household in a certain country. Assume the distribution of the number of people per household is as shown in the table to the right. x P(x) 2 .26 3 .25 4 .32 5 .12 6 .03
The U.S. Census Bureau collects demographics concerning the number of people in families per household. Assume...
The U.S. Census Bureau collects demographics concerning the number of people in families per household. Assume the distribution of the number of people per household is shown in the following table: ________________ x P(x) _______________ 2 0.27 3 0.25 4 0.28 5 0.13 6 0.04 7 0.03 a) Calculate the expected number o f people in families per household in the United States. b) Compute the variance and standard deviation of the number of people in families per household.
Classify the following as either a discrete random variable or a continuous random variable. (a) The airspeed of an unla...
Classify the following as either a discrete random variable or a continuous random variable. (a) The airspeed of an unladen swallow. (b) The number of rodents of unusual size that Buttercup and Westley battle each time they cross through the swamp. (c) The time it takes for Bob Ross to complete a painting. (d) The number of push-ups the Clemson Tiger mascot does during a football game. (e) The amount of Gatorade (in ounces) NFL players consume during a game....
The number of persons living per household in a city was collected and were summarized. The...
The number of persons living per household in a city was collected and were summarized. The frequency table is given below: # people # households (millions 1 23 45 6 7 | 3.1 | 4.5 | 3.8 | 2.5 | 2.4 | 2.5 | 1.2 Define X as the number of people per household. (a) Write down the probability distribution of X. (b) Find P[X2 4] (c) Find P[2 S X< 4] (d) Find the mean, variance and standard deviation...
The following table contains the probability distribution for the number of traffic accidents daily in a...
The following table contains the probability distribution for the number of traffic accidents daily in a smal town. Complete parts (a) and (b) to the right. a. Compute the mean number of accidents per day. Number of Accidents Px) (Type an integer or a decimal.) Daily (X) 0.22 0.25 0.21 0.11 0.09 0.07 0.05 b. Compute the standard deviation. (Type an integer or decimal rounded to three decimal places as needed.)
Use the probability distribution to complete parts (a) through (d) below The probability distribution of number...
Use the probability distribution to complete parts (a) through (d) below The probability distribution of number of televisions per household in a small town P(x) (a) Find the probability of randomly selecting a household that has one or two televisions The probability is 0.02 0.13 0.25 0.60 Type an integer or a decimal. Do not round) (b) Find the probability of randomly selecting a household that has two or more televisions The probability is Type an integer or a decimal....
In the accompanying table, the random vanable x represents the number of televisions in a household...
In the accompanying table, the random vanable x represents the number of televisions in a household in a certain country Determine whether or not the table is a probably distribution probability distribution, find its mean and standard deviation is a E! Click the icon to view the data If the table is a probability distribution, what is its mean? Select the correct choice below and fill in any answer boxes within your choice O A Its mean is (Round to...
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The distribution of the number of hours that a random sample of people spend doing chores per week i shown in the pie chart Use 32 as the estimate the sampke mean and the sample standard deviation of the data set midpoint for "30+hours-Make a frequency dotrbtion for the data Then use the table to Click the icon to view the pie chart Class Frequency 0.4 10-14 15-19 25-29 30+ Find an approximation for the sample mean (Type an integer...
The number of persons living per household in a city was collected and were summarized. The frequency table is given below: # people # households (millions 1 23 45 6 7 | 3.1 | 4.5 | 3.8 | 2.5 | 2.4 | 2.5 | 1.2 Define X as the number of people per household. (a) Write down the probability distribution of X. (b) Find P[X2 4] (c) Find P[2 S X< 4] (d) Find the mean, variance and standard deviation...
The following table contains the probability distribution for the number of traffic accidents daily in a smal town. Complete parts (a) and (b) to the right. a. Compute the mean number of accidents per day. Number of Accidents Px) (Type an integer or a decimal.) Daily (X) 0.22 0.25 0.21 0.11 0.09 0.07 0.05 b. Compute the standard deviation. (Type an integer or decimal rounded to three decimal places as needed.)
Use the probability distribution to complete parts (a) through (d) below The probability distribution of number of televisions per household in a small town P(x) (a) Find the probability of randomly selecting a household that has one or two televisions The probability is 0.02 0.13 0.25 0.60 Type an integer or a decimal. Do not round) (b) Find the probability of randomly selecting a household that has two or more televisions The probability is Type an integer or a decimal....
In the accompanying table, the random vanable x represents the number of televisions in a household in a certain country Determine whether or not the table is a probably distribution probability distribution, find its mean and standard deviation is a E! Click the icon to view the data If the table is a probability distribution, what is its mean? Select the correct choice below and fill in any answer boxes within your choice O A Its mean is (Round to...
The distribution of the number of hours that a random sample of people spend doing chores per week i shown in the pie chart Use 32 as the estimate the sampke mean and the sample standard deviation of the data set midpoint for "30+hours-Make a frequency dotrbtion for the data Then use the table to Click the icon to view the pie chart Class Frequency 0.4 10-14 15-19 25-29 30+ Find an approximation for the sample mean (Type an integer...
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