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3 years ago

84 people take a driving test.

1 answer:

4 0

Answer: The probability that you select a women who passes is 1/2.

First, let's look at the men. 21 of the 84 test takers were men. If the ratio is 5:2 for failing. Then, 15 failed and 6 passes.

Second, let's look at the women. 63 of the test takers were women. If double the number passed, then 42 passed and 21 failed.

The chances that a random person was a women who passes is 42 out of 84 or 1/2.

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. Three professors examined awareness of four widely disseminated retirement rules among employees at University of Utah. These

Leya [2.2K]

Answer:

a) The population of interest = 10,000 benefited employees. It includes all benefited employees.

b) The sample collected = 3,095. These are the benefited employees who participated in the study.

c) Indication of demographic variables as categorical or numerical:

Demographic data: Categorical or Numerical

Gender = Categorical

Age (years) = Numerical

Education level = Numerical

(years completed)

Marital status = Categorical

Household income ($) = Numerical

Employment Category = Categorical

Step-by-step explanation:

a) Data and Calculations:

Population of interest = 10,000 benefited employees

Sample = 3,095 participants

Demographic data:

Gender

Age (years)

Education level (years completed)

Marital status

Household income ($)

Employment Category

b) A variable is numerical value (e.g. length, test scores, etc.). It is a continuous variable. A categorical variable assumes a limited or fixed number of possible values, or it is categorized in groups.

8 0

2 years ago

Describe this translation.

Jet001 [13]

Answer:

D(4 units right, 2 up)

Step-by-step explanation:

You must pick a point which does not have an apostrophe. Then you see how which direction is goes (e.g left or right) and then you see the height (up and down) and combining all this the answer would be 4 units right, 2 up

3 0

2 years ago

About 2% of the population has a particular genetic mutation. 500 people are randomly selected.

S_A_V [24]

The standard deviation for the number of people with the genetic mutation in such groups is 3.1305.

<h3>Standard Deviation</h3>

In statistics, the standard deviation is a measure of the amount of variation or dispersion of a set of values. A low standard deviation indicates that the values tend to be close to the mean of the set, while a high standard deviation indicates that the values are spread out over a wider range.

Let X be the number of people with genetic mutation is a group of 500,

The formula of standard deviation is given as

$SD=\sqrt{n*p(1-p)} \\SD=\sqrt{500*0.02*0.98} \\SD=3.1305$

The standard deviation of the given sample is 3.1305

Learn more on standard deviation here;

brainly.com/question/28290366

#SPJ1

4 0

1 year ago

Traveling at 65 miles per hour how long will it take me to drive 310 miles

ycow [4]

Travel at the speeds of 65 miles per hour to drive the distance of 310 miles (if the speed in which the person in question is traveling at the same speed) =
310 divided by 65 = $\frac{310}{65}$
= 4 and $\frac{10}{13}$ hours
since it is "traveled distance = speed multiplied by time it takes

4 0

2 years ago

Solve for y, show your steps<br><br><br>y = x(2y - 3)

Xelga [282]

Answer:

y= $\frac{-3x}{-2x+1}$

Step-by-step explanation:

3 0

2 years ago