Answer:
The answer is -1.8
Step-by-step explanation:
5 x -1.8 = -9 = -9 divided by -1.8 = 5
Answer:
Yes
Step-by-step explanation:
Answer:
0.0010,0.2743
Step-by-step explanation:
Given that Stanford–Binet IQ Test scores are normally distributed with a mean score of 100 and a standard deviation of 15
If x represents the scores then
X is N(100,15)
a) See enclosed file
b) Z score =
c) the probability that a randomly selected person has an IQ test score
i. Over 145.
=
ii. Under 91
=