Answer:
8
(
x − 7
) (
x + 4
)
Step-by-step explanation:
Answer:
Yes.
Step-by-step explanation:
A prime number is a number that is ony divisible by itself and 1.
2 is only divisible by 2(=1) and 1 (=2)
Mean, m = 18 in
Standard deviation, SD = 2.2 in
Range: 16 ≤ X ≤ 21 in
Calculating Z value,
Z = (X-m)/SD
Then,
Z1 = (16-18)/2.2 ≈ -0.91
Z2 = (21-18)/2.2 ≈ 1.36
From Z table, and at Z1 = -0.91, and Z2 = 1.36;
P(16) = 0.1814
P(21) = 0.9131
Therefore,
P(16≤X≤21) = 0.9131 - 0.1814 = 0.7317
The probability that a child selected randomly measures between 16 and 21 in is 0.7317.
C dude now let me get that Brainly
