Answer:
the probability when the IQ is lower than 136 is 0.9641
Step-by-step explanation:
Given that
The mean is 100
The standard deviation is 20
We need to find out the probability when the IQ is lower than 136
So,
z value equivalent to 136 = (136 - 100) ÷ 20 = 1.8
Now
p (z < 1.8) = 0.9641
hence, the probability when the IQ is lower than 136 is 0.9641
I guess you mean that the zeroes are 2 and -3/5.
In factor form the function could be
f(x) = (x - 2)(3x + 5)
expanding we get
f(x) = 3x^2 -x - 10
Answer:
70000.036 = 1260
Step-by-step explanation:
Answer:
P(80-90)=66.666666...% Or 0.666666...
Step-by-step explanation:
Total tests = 21
Tests with 80-90 = 14
14 ÷ 21 = 2/3 which is 66.66666% or 0.66666