Answer:
Step-by-step explanation:
Given that twenty-three percent of automobiles are not covered by insurance (CNN, February 23,2006).
considering the total number of vehicles, probability for a randomly drawn vehicle not covered by insurance = 0.23
Each vehicle can be treated as independent of the other
Hence X no of vehicles not covered by insurance is Binom with n = 35 and p - 0.23
a) the expected number of these automobiles that are not covered by insurance=E(x) =
b) the variance
=
Std dev = square root of variance = 2.4897
<span>square roots of 49/121
=</span><span>square roots of 7^2/11^2
= 7/11</span>
So,
For every 2 large notebooks Ann orders, she orders 1 small notebook.
This can be stated as a ratio: 2:1
Add up the units to find the value of each unit.
2 + 1 = 3
Divide 48 by 3 to get the unit value.
48/3 = 16
The unit value is 16.
The number of large notebooks Ann orders is 2(16):16
This is a 2:1 ratio.
Therefore, Ann ordered 32 large notebooks and 16 small notebooks.
Answer:
Paired t-test
Step-by-step explanation:
paired t–test is used when there is one measurement variable and two nominal variables. The most common design is that one nominal variable represents individual organisms, while the other is "before" and "after" some treatment.
Answer:
(0,-9) You have to substitute 0 for x and solve for y
