The probability that the person has an IQ greater than 120 is 0.2524 of 25.24%
<h3>What is probability?</h3>
It is a branch of mathematics that deals with the occurrence of a random event.
Given:
IQ is normally distributed with a mean of 100 and a standard deviation of 15.
probability that the person has an IQ greater than 120,
P(x >120)
= P(Z > 120-100/ 15)
= P(Z > 0.667)
P(x >120) = 1- P(Z < 0.667)
= 1-0.7476
= 0.2524
= 25.24%
Hence, the probability is 0.2524.
Learn more about this concept here:
brainly.com/question/13691030
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Answer:
$5.40
Step-by-step explanation:
1.60 times 4 equals $6.40 and subtract the dollar off
to find the inverse of the function exchange x and y and then solve for y
y = 5 / sqrt (x)
x = 5 / sqrt(y)
multiply by the sqrt(y)
x * sqrt(y) = 5
divide by x
sqrt(y) = 5/x
square both sides
y = (5/x) ^2
y = 25/x^2
The inverse of 5 / sqrt (x) is 25/x^2
Do the same graph but inversed, kind of like when you see yourself in a mirror
Answer:
70
Step-by-step explanation:
(Not the most streamlined way but.)
Knowing that if he had 5 tests, and a mark of 85, we can determine the total average grade Bill received. 85*5=425
Then subtract the known grades
425-(90+85+100+80)=x
425-(355)=x
70=x
Bill would have scored 70 on that 5th test