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3 years ago

6

Suppose a random variable, x, arises from a binomial experiment. If n = 25, and p = 0.85, find the variance. Round answer to 4 d

ecimal places. Answer:

1 answer:

Tamiku [17]3 years ago

8 0

Answer:

<u><em>a) P(X=1) = 0.302526</em></u>

<u><em>b) P(X=5) = 0.010206</em></u>

<u><em>c) P(X=3) = 0.18522</em></u>

<u><em>d) P(X≤3) = 0.92953</em></u>

<u><em>e) P(X≥5) = 0.010935</em></u>

<u><em>f) P(X≤4) = 0.989065</em></u>

<u><em></em></u>

<u><em></em></u>

<u><em>If helpful, please mark as brainliest! =)</em></u>

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Jack took 2 1/4 hours to complete a project. John took 3/8 hours longer to complete the same project. How long did John take to

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It takes Jack 2 1/4 hours (or 9/4 hours) to complete a project. John takes 3/8 hours longer.

We need to add 9/4 + 3/8

First, make the denominators equivalent.

We can do this by multiplying 2/2 to 7/2 which makes the denominator 8 (since 3/8 is already 8)

9/4 x 2/2 = 28/8
(note that we can do this because 2/2 is 1 and multiplying a number by 1 doesn't change its value)

Add 28/8 + 3/8
28/8 + 3/8 = 31/8

31/8 hours is our final answer, as a mixed number it is 3 7/8 hours :)

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swat32

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Answer:

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3 years ago

The length between the bases on a baseball field is 90 feet. A scale drawing shows the distance between the bases as 2 inches. O

eduard

Answer:

1 inch of drawing = 45 feet

Step-by-step explanation:

Given that:

Length between the bases on a baseball field = 90 feet

As per the scale drawing, the distance between the bases is equal to 2 inches.

To find:

Length of one inch on the drawing is equal to actual length of how many feet?

Solution:

First of all, let us learn about the scale drawings.

Scale drawings are a way to represent the big real world measurements on a paper.

Therefore, small measurements are used to represent the bigger real world measurements.

Here, it is given that:

2 inches on scale is equal to 90 feet of actual length.

Therefore,

1 inch on scale is equal to $\frac{90}{2}$ = 45 feet of actual length.

Therefore, <em>1 inch of drawing = 45 feet</em>

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