Answer: 17 / 990
Step-by-step explanation:
To obtain the probability of the question above :
Find the count of number pairs whose difference gives is 15 in the range (1 to 100).
Also find the count of all distinct number pair differences
Number pair which have a difference of 15 = 85
Total distinct number pair differences = 4950
Probability = required outcome / Total possible outcomes
P(difference of 15) = 85/4950 = 17/990
Answer:
Lorenzo's score on exam was 75.
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = 61
Standard Deviation, σ = 8
We are given that the distribution of test score is a bell shaped distribution that is a normal distribution.
Formula:

z-score = 1.75
We have to find the value of x.
Putting values, we get

Thus, Lorenzo's score on exam was 75.
Answer:
f= (not applicable)
x= f(x)=1/2*((27) squared (x/3))
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
B: 1 = 3×1 -2 = 1
4 = 3×2 -2
The graph of y = 3x + 1 has a slope of 3, for it to be steeper the graph should have a slope of more than 3.
Therefore, the equation to use is y = 7x + 1