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Vinvika [58]
3 years ago
5

Probability of someone either owning a dog or being male.​

Mathematics
1 answer:
andrey2020 [161]3 years ago
6 0

Answer:

c. 60.278%

Step-by-step explanation:

There is a 27.778% probability that someone owns a dog.

There is a 45% probability that someone is a male.

However, these two are not mutually exclusive.  12.5% both own a dog and are male.  If we simply add 27.778% and 45%, we'll be double counting the overlap.  To avoid this, we subtract 12.5%.

27.778% + 45% − 12.5% = 60.278%

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D. the range would include all real numbers.
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Given g(x)= -x-4, solve for x when g(x) =10
dalvyx [7]

Answer:

10 =  - x - 4 \\ 10 + 4 =  -  \times  \\ 14 =  - x \\ x =  - 14

5 0
3 years ago
The two triangles are similar. Determine the values of x, y, and z.
insens350 [35]

Answer:

y= 20 m

x= 15 m

z= 22 degree

Step-by-step explanation:

15+x=30 m

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8 0
3 years ago
The proportion of students at a college who have GPA higher than 3.5 is 19%. a. You take repeated random samples of size 25 from
melomori [17]

Answer:

\mu_{\hat{p}}=0.19

\sigma_{\hat{p}}=0.0785

Step-by-step explanation:

We know that the mean and the standard error of the sampling distribution of the sample proportions will be :-

\mu_{\hat{p}}=p

\sigma_{\hat{p}}=\sqrt{\dfrac{p(1-p)}{n}}

, where p=population proportion and n= sample size.

Given : The proportion of students at a college who have GPA higher than 3.5 is 19%.

i.e. p= 19%=0.19

The for sample size n= 25

The mean and the standard error of the sampling distribution of the sample proportions will be :-

\mu_{\hat{p}}=0.19

\sigma_{\hat{p}}=\sqrt{\dfrac{0.19(1-0.19)}{25}}\\\\=\sqrt{0.006156}=0.0784601809837\approx0.0785

Hence , the mean and the standard error of the sampling distribution of the sample proportions :

\mu_{\hat{p}}=0.19

\sigma_{\hat{p}}=0.0785

8 0
4 years ago
A line has a slope of 2. Write an equation in slope intercept form for the line that is perpendicular to this line.
notsponge [240]

Hey there!

A perpendicular line's slope to another line is always the negative reciprocal of slope.

If our line has a slope of two, we first must find the reciprocal, which is 1/2. Then, we put a negative on it.

Therefore, our equation is y=-1/2x+b.

I hope that this helps! Have a great day!

6 0
3 years ago
Read 2 more answers
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