Answer:
I believe the answer is A - graph W
Step-by-step explanation:
Answer:
1.17-3.99a
Step-by-step explanation:
You can only combine like terms and 1.17 is not a like term to -0.07a and -3.92a
So you can only combine the like terms
Answer:C
Step-by-step explanation:11m is the radius and to find the diameter u multiply 11 x 2 which is radius x 2 which = 22
Answer:
30
Step-by-step explanation:
5*2*3 - 2*0 = 30 - 0 = 30
Answer:
The variance for the number of tasters is 4.2
Step-by-step explanation:
For each person, there are only two possible outcomes. Either they are tasters, or they are not. The probability of a person being a taster is independent of any other person. So we use the binomial probability distribution to solve this question.
Binomial probability distribution
Probability of exactly x sucesses on n repeated trials, with p probability.
The variance of the binomial distribution is:

It is known that 70% of the American people are "tasters" with the rest are "non-tasters". Suppose a genetics class of size 20
This means that 
So

The variance for the number of tasters is 4.2