Dividing Binomials by monomials
1 answer:
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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
Answer:
A) 2.58
B) 1.96
C) 1.65
Step-by-step explanation:
A hypothesis used to test that
against the alternatives not equal to 10
if null hypothesis is true, then distribution of test statics follow
for two sided alternatives hypothesis , then P value is
(1)
a)significance level
from 1 eq we get
Therefore FROM Z TABLE
B) significance level
from 1st equation we get
Therefore FROM Z TABLE
C) significance level
from 1 eq we get
Therefore FROM Z TABLE