chillywilly12a
2021-02-22
Answered

A random sample of 1200 U.S college students was asked, "What is your perception of your own body? Do you feel that you are overweight, underweight, or about right?" The two-way table below summarizes the data on perceived body image by gender. $$\begin{array}{lcc}& Female& Male\\ Aboutright& 560& 295\\ Overweight& 163& 72\\ Undenveight& 37& 73\end{array}$$

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joshyoung05M

Answered 2021-02-23
Author has **97** answers

Definition conditional probability:

asked 2021-05-05

The two-way table summarizes data on whether students at a certain high school eat regularly in the school cafeteria by grade level.

If you choose a student at random who eats regularly in the cafeteria, what is the probability that the student is a 10th-grader?

asked 2021-01-10

A group of 125 truck owners were asked what brand of truck they owned and whether or not the truck has four-wheel drive. The results are summarized in the two-way table below. Suppose we randomly select one of these truck owners.

$\begin{array}{ccc}& \text{Four-wheel drive}& \text{No four-wheel drive}\\ \text{Ford}& 28& 17\\ \text{Chevy}& 32& 18\\ \text{Dodge}& 20& 10\end{array}$

What is the probability that the person owns a Dodge or has four-wheel drive?

$(a)\frac{20}{80}$

$(b)\frac{20}{125}$

$(c)\frac{80}{125}$

$(d)\frac{90}{125}$

$(e)\frac{110}{125}$

What is the probability that the person owns a Dodge or has four-wheel drive?

asked 2020-12-21

A survey of 4826 randomly selected young adults (aged 19 to 25) asked, "What do you think are the chances you will have much more than a middle-class income at age 30?" The two-way table summarizes the responses.

Choose a survey respondent at random. Define events G: a good chance, M: male, and N: almost no chance. Find

asked 2021-11-23

You roll a die. If it comes up a 6, you win 100. If not, you gettoroll again. If you get a 6 the second time, you win 50. If not, you lose. Find the expected amount you'll win.

asked 2021-11-16

Using data from the 2000 census, a random sample of 348 U.S. residents aged 18 and older was selected. The two-way table summarizes the relationship between gender and housing status for these residents.

$$\begin{array}{|cccc|}\hline & \text{Male}& \text{Female}& \text{Total}\\ \text{Own}& 132& 122& 254\\ \text{Rent}& 50& 44& 94\\ \text{Total}& 182& 166& 348\\ \hline\end{array}$$

Make a graph that displays the relationship between gender and housing status for the members of the sample. Briefly describe the association.

Make a graph that displays the relationship between gender and housing status for the members of the sample. Briefly describe the association.

asked 2021-05-01

The two-way table below describes the members of the U.S Senate in a recent year.

Male Female

Democrats 47 13

Republicans 36 4

If we select a U.S. senator at random, what's the probability that the senator is a female?

Male Female

Democrats 47 13

Republicans 36 4

If we select a U.S. senator at random, what's the probability that the senator is a female?

asked 2021-02-02

The Pew Research Center asked a random sample of 2024 adult cellphone owners from the United States their age and which type of cell phone they own: iPhone, Android, or other (including non-smartphones). The two-way table summarizes the data.

$\begin{array}{ccccc}& 18-34& 35-54& 55+& \text{Total}\\ \text{iPhone}& 169& 171& 127& 467\\ \text{Androod}& 214& 189& 100& 503\\ \text{Other}& 134& 277& 643& 1054\\ \text{Total}& 517& 637& 870& 2024\end{array}$

Suppose we select one of the survey respondents at random. What's the probability that: The person is not age 18 to 34 and does not own an iPhone?

Suppose we select one of the survey respondents at random. What's the probability that: The person is not age 18 to 34 and does not own an iPhone?