Answer:
The first quartile of the IQ scores of adults is 82.26.
Step-by-step explanation:
The first quartile is the value that is greater than 25% of the observations and less than 75% of the observation.
The formula to compute the first quartile (Q₁) of a Normal distribution is:

The mean and standard deviation of the IQ scores of adults are:

Compute the first quartile value as follows:

Thus, the first quartile of the IQ scores of adults is 82.26.
Answer:
64 squnits
Step-by-step explanation:
trapezium is (base+top)/2 times height
(6+10)/2=8
8x8=64
I think you would times them to find the area which is 194 ft4
Answer:
a
because 1 1/2 * 1 1/2 *1 = 2 1/4