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IrinaK [193]
3 years ago
10

Question 1

Mathematics
1 answer:
Alexandra [31]3 years ago
8 0

Answer:

The mean is 21.12.

Step-by-step explanation:

Binomial probability distribution

Probability of exactly x successes on n repeated trials, with p probability.

The expected value of the binomial distribution is:

E(X) = np

In this question:

n = 48, p = 0.44

Mean:

E(X) = np = 48(0.44) = 21.12

The mean is 21.12.

You might be interested in
If R is between P and Q, find the value of x and PR. PQ=17, PR=5x+2, RQ=x^2-1
vodka [1.7K]

The value of x will be2.217 and PR will be 13.085 units.

<h3>What is a line segment?</h3>

A line section that can connect two places is referred to as a segment.

In other words, a line segment is just part of a big line that is straight and going unlimited in both directions.

The line is here! It extends endlessly in both directions and has no beginning or conclusion.

Given that,

Line PQ consists of two segments PR and RQ

So,

PQ = PR + RQ

17 = 5x+2 + x² - 1

x² + 5x  - 16 = 0

The roots of the equation will be

x = [-5 + √(25 + 64) ] ÷ 2

x = 2.217

Now,

PR = 5(2.217) + 2 = 13.085

Hence "The value of x will be2.217 and PR will be 13.085 units".

For more about line segment,

brainly.com/question/25727583

#SPJ1

3 0
2 years ago
If two rectangles have the same area what do u know abt the measures of their sides
kakasveta [241]
In rectangle ABCD
AB * AC = area

In another rectangle WXYZ
WX * WY = area

The sides must be equal or have same multiples and should be divisible by each other
8 0
3 years ago
2+2=4 the wat does 50*1 equal
Rudiy27

Answer:

34

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Darrin put the numbers 7.25, 7.52, 5.72 and 5.27 in order from the greatest to the least. Is his work correct? Explain.
vampirchik [111]
No his work is not correct because 5.72 is larger than 5.27. so therefore you can not be correct
3 0
3 years ago
Read 2 more answers
What is the value of<br>7x2 - 10, when x = 6?<br>​
cestrela7 [59]

Answer:

242

Step-by-step explanation:

7(6*6)-10

7(36)-10

252-10

=242

7 0
4 years ago
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