Answer:
b
Step-by-step explanation:
3 baseball + 9 football 9+3 = 12
3 out of 12 were base ball
3/12=0.25
60*0.25 = 15
so there would be 15 baseball cards
Answer:
The sample median number of occupants is 1.
Step-by-step explanation:
Median:
The measure that separates the lower half of the distribution from the upper half.
In this question:
Total of 100 cars.
64 have 1 occupant.
19 have 2 occupants
12 have 3 occupants
3 have 4 occupants
2 have 5 occupants.
Median:
In the cumulative distribution
100/2 = 50
While we count until 64, it has 1 occupant, so 50 is one occupant, which means that the sample median is 1.
The sample median number of occupants is 1.
You would use d) power of a power because:
(x^4)^9
= (x^(4*(9))
= x^36
It depends on which statistic test we wish to perform, the formula to find a degree of freedom could be different.
for Normal Distribution test, we do not need to find a degree of freedom
for T-test and Chi-Square test, we do n - 1 to find the degree of freedom, where 'n' is the sample size.
if we have two different sample size, then the degree of freedom is given by (n₁ + n₂) - 2
We are given only one sample size, n = 28, hence the degree of freedom is 28 - 1 = 27
