Answer:
The mathematical expectation of a student who purchases 10 tickets is -$39.65.
Step-by-step explanation:
A student that purchases 10 tickets out of 2900 has a probability of winning the cruise that can be calculated as:
Each ticket cost $5, so he has spent $50 for the 10 tickets.
Then, the expected value of this operation is equal to the expected value of the earnings (probability of winning the prize multiplied by the value of the prize), minus the costs:
The mathematical expectation of a student who purchases 10 tickets is -$39.65.
Hey this is very easy to learn! So to express a decimal as a percent all we have to do is multiply it by 100. So multiplying .053 by 100 would just mean moving the decimal point 2 spaces to the right.
So the answer would be 5.3%
I hope this helps!
-Ayden
Answer:
THere will be 8 heads and 2 tails
Step-by-step explanation:
I don't know
Answer: B. 0.036
Step-by-step explanation:
Formula for standard error :
, where p = Population proportion and n= sample size.
Let p be the population proportion of the people who favor new taxes.
As per given , we have
n= 170
Substitute these values in the formula, we get
Hence, the standard error of the estimate is 0.036.
∴ The correct answer is OPTION B. 0.036
Answer:
The total earning of Mr Wallace for the week is $310.37
Step-by-step explanation:
Given as :
The fixed weekly salary of Mr Wallace = $275
And The commission of 3% on his total sell
Last week Mr Wallace total sells amount= $1179
I.e 3% of total sells amount = 3% of $1179 = .03 × $1179 = $35.37
∴The total earning = $275 + $35.37 = $310.37
Hence The total earning of Mr Wallace for the week is $310.37 Answer
