Answer:
Step-by-step explanation:
In exponent multiplication, if two numbers have same base, just add the exponents
In exponent division, if two numbers have same base, just subtract the exponents
Prime factorize 4 = 2*2 = 2²
4⁻¹ *(2³÷ 4⁻² )= (2²)⁻¹ * ( 2³÷ (2²)⁻²
= (2⁻²)* (2³ ÷2⁻⁴)
Answer:
9, 24
Step-by-step explanation:
Given;
Mean= 3
Variance =2
Lets make m, the number of grandchildren of a generation of a certain person. This will make our question to be considerably related to the second generation offspring.
Hence n= 2.
Please kindly go to attachment for detailed step by step solution.
The randomly selected subject is given bone density test which are normally distributed with mean =0 and standard deviation =1. It means bone density test score is standard normal variable.
The probability that a given score is less than 2.23
P(z < 2.23)
Using z score table to find probability below z=2.23
P(z < 2.23) = 0.9871
The probability that a given score is less than 2.23 is 0.9871
