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Whitepunk [10]
2 years ago
8

Can someone solve this question PLEASE?? check the attached pic

Mathematics
1 answer:
Talja [164]2 years ago
5 0

Answer:

someone ur so ugly

Step-by-step explanation:

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Suppose that 70% of college women have been on a diet within the past 12 months. A sample survey interviews an SRS of 267 colleg
Fofino [41]

Answer:

The probability that 75% or more of the women in the sample have been on a diet is 0.037.

Step-by-step explanation:

Let <em>X</em> = number of college women on a diet.

The probability of a woman being on diet is, P (X) = <em>p</em> = 0.70.

The sample of women selected is, <em>n</em> = 267.

The random variable thus follows a Binomial distribution with parameters <em>n</em> = 267 and <em>p</em> = 0.70.

As the sample size is large (n > 30), according to the Central limit theorem the sampling distribution of sample proportions (\hat p) follows a Normal distribution.  

The mean of this distribution is:

\mu_{\hat p} = p = 0.70

The standard deviation of this distribution is: \sigma_{\hat p}=\sqrt{\frac{p(1-p}{n}} =\sqrt{\frac{0.70(1-0.70}{267}}=0.028

Compute the probability that 75% or more of the women in the sample have been on a diet as follows:

P(\hat p \geq 0.75)=P(\frac{\hat p-\mu_{\hat p}}{\sigma_{\hat p}} \geq \frac{0.75-0.70}{0.028}) =P(Z\geq0.179)=1-P(Z

**Use the <em>z</em>-table for the probability.

P(\hat p \geq 0.75)=1-P(Z

Thus, the probability that 75% or more of the women in the sample have been on a diet is 0.037.

7 0
3 years ago
Is (4, 3) a solution to the inequality 7x + 5y = 15?<br> yes<br> no
torisob [31]

Answer:

no

Step-by-step explanation:

7x+5y=15

(x,y)

(4,3)

put in 4 for x and 3 for y

7(4)+5(3)=15

43=15

This equation is impossible

Hope that helps :0

4 0
3 years ago
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How is the answer c , need help with the steps
Sergio039 [100]

r(x)=4(x+2)^3\\\\C)\ m(x)=4x,\ a(x)=x^3,\ c(x)=x+2\\\\a(c(x))=(x+2)^3\\\\m(a(c(x)))=4(x+2)^3\\\\Answer:\ \boxed{C)}

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3 years ago
Trapezoid FGHI is rotated using the origin as the center of rotation. The preimage and image are graphed below.
skelet666 [1.2K]

The rotated image if below the original image, so this shows it was rotated clockwise.

In the original image line FG is a horizontal line, if it is rotated 90 degrees, it would become a vertical line. In the rotated image line FG is at an angle, so this means it was rotated 45 degrees.

The answer is a 45 degree clockwise rotation.

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3 years ago
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Sami ordered 132 dresses for her store .what is 132 rounded to the nearest ten?
Katyanochek1 [597]
The answer is 130 because if the number in the ones place is 0-4 it stays in the 30s, but if its 5-9 it rounds up to the 40s
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3 years ago
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