Answer:
Step-by-step explanation:
The probability mass function P(X = x) is the probability that X happens x times.
When n trials happen, for each 
, the probability mass function is given by:
In which p is the probability that the event happens.
is the permutation of n elements with x repetitions(when there are multiple events happening(like one passes and two not passing)). It can be calculated by the following formula:
The sum of all P(X=x) must be 1.
In this problem
We have 3 trials, so 
The probability that a wafer pass a test is 0.7, so 
Determine the probability mass function of the number of wafers from a lot that pass the test.
Given:
y-intercept of the graph: (0, 90)
zeros: 5 and 9
The equation that models the function based on the zeros given, is either
y = 90 (x-5) (x-9)
or
y= 2(x-5)(x-9)
try solving for the y-intercept of each function,
y = 90 (0-5) (0-9)
y = 4050
(0, 4050)
y = 2(0-5) (0-9)
y = 90
(0, 90)
therefore, the equation that models the function is y = 2(x-5)(x-9)
So it would be 5 divided by four. You cannot do that, so the closest number you could get to is 4. Which means each teammate gets 1 granola bar. The sentence for that would be: 5 divided by 4 = 1 remainder 1.
The expression that best represents Amy's income for the week is 150 + 13h
<h3>Which of the following expressions best represents Amy's income for the week?</h3>
The given parameters are:
Cleaning house = $150
Babysitting = $13 per hour
Let the number of hours be h.
So, we have
Total = 150 + 13 * h
Evaluate
Total = 150 + 13h
Hence, the expression that best represents Amy's income for the week is 150 + 13h
Read more about linear expressions at:
brainly.com/question/14323743
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