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In the accompanying table, the random vanable x represents the number of televisions in a household...
6. In the accompanying table, the random variable x represents the number of televisions in a...
6. In the accompanying table, the random variable x represents the number of televisions in a household in a certain country. Determine whether or not the table is a probability distribution. If it is a probability distribution, find its mean and standard deviation. x P(x) 0 0.04 1 0.11 2 0.32 3 0.25 4 0.15 5 0.13 If the table is a probability distribution, what is its mean? Select the correct choice below and fill in any answer boxes within...
7. Number of Televisions Based on data obtained from AC Nielsen, the mean number of televisions in a household in...
7. Number of Televisions Based on data obtained from AC Nielsen, the mean number of televisions in a household in the United States is 2.24. Assume that the population standard deviation number of television sets in the United States is 1.38. (a) Do you believe the shape of the distribution of number of television sets follows a normal distribution? Why or why not? (b) A random sample of 40 households results in a total of 102 television sets, What is...
A frequency distribution is shown below. Complete parts (a) through (e) The number of dogs per...
A frequency distribution is shown below. Complete parts (a) through (e) The number of dogs per household in a small towr Dogs Households 1427 42 5 26 11 164 41 (a) Use the frequency distribution to construct a probability distribution. P(x) Round to the nearest thousandth as needed.) (b) Find the mean of the probability distribution. (Round to the nearest tenth as needed.) (c) Find the variance of the probability distribution. ?2-O (Round to the nearest tenth as needed.) (d)...
A study conducted by a TV station showed the number of televisions per household and the...
A study conducted by a TV station showed the number of televisions per household and the corresponding probabilities for each. Find the mean, variance, and standard deviation. x (Number of TV’s) P(x) xP(x) x2 x2P(x) 1 0.32 2 0.51 3 0.12 4 0.05 Find the probability a household owns more than 2 televisions? (1 pt.) Find the probability a household owns at most 2 televisions? (1 pt.) Find the mean, variance, and standard deviation. (Fill in the table)...
A frequency distribution is shown below. Complete parts (a) and (b) The number of televisions per...
A frequency distribution is shown below. Complete parts (a) and (b) The number of televisions per household in a small town Televisions 0 Households 23 442 730 1408 (a) Use the frequency distribution to construct a probability distribution x P) Round to three decimal places as needed) (b) Graph the probability distribution using a histogram. Choose the correct graph of the distribution below O A. ов. ос. Px) 0 4 Click to select your answer(s) A frequency distribution is shown...
Complete parts (a) and (b) below. The number of dogs per household in a small town...
Complete parts (a) and (b) below. The number of dogs per household in a small town Dogs 0 2 3 Probability 0.638 0.225 0.088 0.026 4 0.014 5 0.009 (a) Find the mean, variance, and standard deviation of the probability distribution. Find the mean of the probability distribution. u= (Round to one decimal place as needed.) Find the variance of the probability distribution 02 = (Round to one decimal place as needed.) Find the standard deviation of the probability distribution...
Let the random variable x represent the number of girls in a family with three children....
Let the random variable x represent the number of girls in a family with three children. Assume the probability of a child being a girl is 0.31. The table on the right describes the probability of having x number of girls. Determine whether the table describes a probability distribution. If it does, find the mean and standard deviation. Is it unusual for a family of three children to consist of three girls? 0 1 2 3 P(x) 0.329 0.443 0.199...
ive males with an X-linked genetic disorder have one child each. The random variable x is the number of children am...
ive males with an X-linked genetic disorder have one child each. The random variable x is the number of children among the five who inherit the X-linked genetic disorder. Determine whether a probability distribution is given. If a probability distribution is given, find its mean and standard deviation. If a probability distribution is not given, identify the requirements that are not satisfied. x P(x) 0 0.0290.029 1 0.1550.155 2 0.3160.316 3 0.3160.316 4 0.1550.155 5 0.0290.029 Does the table show...
Need help with part "C" A random sample of 1011 adults in a certain large country...
Need help with part "C"
A random sample of 1011 adults in a certain large country was asked "Do you pretty much think televisions are a necessity or a luxury you could do without?" Of the 1011 adults surveyed, 536 indicated that televisions are a luxury they could do without Complete parts (a) through (e) below. Click here to view the standard normal distribution table (page 1). Click here to view the standard normal distribution table (page 2) (a) Obtain...
A random sample of 1028 adults in a certain large country was asked "Do you pretty...
A random sample of 1028 adults in a certain large country was asked "Do you pretty much think televisions are a necessity or a luxury you could do without?" Of the 1028 adults surveyed, 527 indicated that televisions are a luxury they could do without. Complete parts (a) through (e) below. Click here to view the standard normal distribution table (page 1). Click here to view the standard normal distribution table (page 2). (a) Obtain a point estimate for the...
7. Number of Televisions Based on data obtained from AC Nielsen, the mean number of televisions in a household in the United States is 2.24. Assume that the population standard deviation number of television sets in the United States is 1.38. (a) Do you believe the shape of the distribution of number of television sets follows a normal distribution? Why or why not? (b) A random sample of 40 households results in a total of 102 television sets, What is...
A frequency distribution is shown below. Complete parts (a) through (e) The number of dogs per household in a small towr Dogs Households 1427 42 5 26 11 164 41 (a) Use the frequency distribution to construct a probability distribution. P(x) Round to the nearest thousandth as needed.) (b) Find the mean of the probability distribution. (Round to the nearest tenth as needed.) (c) Find the variance of the probability distribution. ?2-O (Round to the nearest tenth as needed.) (d)...
A frequency distribution is shown below. Complete parts (a) and (b) The number of televisions per household in a small town Televisions 0 Households 23 442 730 1408 (a) Use the frequency distribution to construct a probability distribution x P) Round to three decimal places as needed) (b) Graph the probability distribution using a histogram. Choose the correct graph of the distribution below O A. ов. ос. Px) 0 4 Click to select your answer(s) A frequency distribution is shown...
Complete parts (a) and (b) below. The number of dogs per household in a small town Dogs 0 2 3 Probability 0.638 0.225 0.088 0.026 4 0.014 5 0.009 (a) Find the mean, variance, and standard deviation of the probability distribution. Find the mean of the probability distribution. u= (Round to one decimal place as needed.) Find the variance of the probability distribution 02 = (Round to one decimal place as needed.) Find the standard deviation of the probability distribution...
Let the random variable x represent the number of girls in a family with three children. Assume the probability of a child being a girl is 0.31. The table on the right describes the probability of having x number of girls. Determine whether the table describes a probability distribution. If it does, find the mean and standard deviation. Is it unusual for a family of three children to consist of three girls? 0 1 2 3 P(x) 0.329 0.443 0.199...
Need help with part "C"
A random sample of 1011 adults in a certain large country was asked "Do you pretty much think televisions are a necessity or a luxury you could do without?" Of the 1011 adults surveyed, 536 indicated that televisions are a luxury they could do without Complete parts (a) through (e) below. Click here to view the standard normal distribution table (page 1). Click here to view the standard normal distribution table (page 2) (a) Obtain...
A random sample of 1028 adults in a certain large country was asked "Do you pretty much think televisions are a necessity or a luxury you could do without?" Of the 1028 adults surveyed, 527 indicated that televisions are a luxury they could do without. Complete parts (a) through (e) below. Click here to view the standard normal distribution table (page 1). Click here to view the standard normal distribution table (page 2). (a) Obtain a point estimate for the...
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