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3 years ago

Find x if the average of 20,20,19,13 and x is 16

Mathematics

2 answers:

Assoli18 [71]3 years ago

7 0

A/Q
(20+20+19+13+x) ÷ 5 = 16
72+x =16×5
72+x = 80
x = 80 - 72
x = 8

amid [387]3 years ago

4 0

16 times the quantity of numbers, in this case 5, which = 80, then subtract each number, 80-20-20-19-13=8. X should = 8

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Answer:

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2 years ago

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2 years ago

The probability of being a universal donor is 6% (O-negative-blood type). Suppose that 6 people come to a blood drive.' a) What

Tcecarenko [31]

Answer:

$Mean = 0.36$

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Step-by-step explanation:

Given

Let

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So:

$P(A) = 0.06$

$n = 6$

Solving (a): Mean and Standard deviation.

The mean is:

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So, we have:

$P(x=3) = ^6C_3 * 0.06^3 * (1-0.06)^{6-3}$

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2 years ago