Answer:
b. CHISQ.TEST
Step-by-step explanation:
Notation and previous concepts
A chi-square test is "used to test if the variance of a population is equal to a specified value. This test can be either a two-sided test or a one-sided test. The two-sided version tests against the alternative that the true variance is either less than or greater than the specified value"
The statistic is given by:

In order to calculate the p value we need to have in count the degrees of freedom , on this case
. And we can calculate the p value would be given by:
But the correct comand is given by:
b. CHISQ.TEST(Actual range, Expected range)
We just need to put in one column the Observed values and in other the expectec values.
Answer:
1 year=3.2%
2 year=6.4%
3 year=9.6%
Step-by-step explanation:
Since the% increases every year
So for the first year=
3.2% of 1
3.2%×1
3.2%
For second year
3.2% ×2
6.4%
For the third year
3.2% × 3
9.6%
Answer:
A. 
B. 
C. 
Step-by-step explanation:
A.
There are 52/4 diamonds in the deck and 4 '5's in the dech of cards
52/4 = 13 + 4 = 17
Therefore, you have a
chance of drawing one of those cards.
B.
There are 13 hearts in the deck and 4 jacks. Therefore, your odds are the same : 
C.
There are 4 jacks in a deck of cards and 4 '8's in a deck of cards
Therefore your probability is
which simplifies to 
<em>As per brainly guidelines I can only answer 3 questions in one answer</em>
Answer:

Step-by-step explanation:
The question is

collect like terms

Answer:
0.67
Step-by-step explanation:
2/3= to 0.66 which means 0.67 would be technally larger than 0.66