Answer:
Step-by-step explanation:
Given that IQ mean is 100 and std dev = 12 for normal adults

Std error = 

i.e. sample size should be atleast 97
The required sample size is 97.
This is reasonable as this is greater than 30
Yes. This number of IQ test scores is a fairly large number.
Answer:
there are 10 tens in 105 with a remainder 5
Step-by-step explanation:
10 times 10 equals 100
Answer:
46
Step-by-step explanation:
You have to do IVU+TUI=TUV
so... x+49+x+63=106
Answer:
Ummm -6 and -4
Step-by-step explanation:
Duh
If I get this it should be, 25 x 12 = 300, think it as 4 x 25 is 100 so you need 3 x 100, so 4 x 3 is 12, 25 x 12 =12, hope this helps