The junior class is selling caramel apple lollipops and gourmet lollipops to raise money for prom. They profit 50 cents and 75 c
ents from each caramel apple lollipop and gourmet lollipop sold respectively. At least $250 must be raised from the fundraiser. Which graph represents the possible combinations of lollipops they can sell to meet or exceed their goals?
2 answers:
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Let
x--------> the amount in dollars that Luis make last week
we know that
------> equation that represent the situation
solve for x
Divide by both sides
therefore
<u>the answer is</u>
Answer:
The probability of a selection of 50 pages will contain no errors is 0.368
The probability that the selection of the random pages will contain at least two errors is 0.2644
Step-by-step explanation:
From the information given:
Let q represent the no of typographical errors.
Suppose that there are exactly 10 such errors randomly located on a textbook of 500 pages. Let be the random variable that follows a Poisson distribution, then mean
and the mean that the random selection of 50 pages will contain no error is
∴
Pr(q =0) = 0.368
The probability of a selection of 50 pages will contain no errors is 0.368
The probability that 50 randomly page contains at least 2 errors is computed as follows:
P(X ≥ 2) = 1 - P( X < 2)
P(X ≥ 2) = 1 - [ P(X = 0) + P (X =1 )] since it is less than 2
P(X ≥ 2) = 0.2644
The probability that the selection of the random pages will contain at least two errors is 0.2644