The probability that at least one of the calculators is defective is : 0.725
<h3>What is probability?</h3>
Probability is the likelihood of an event happening or not.
if there is certainty that the event would happen probability is 1.
Analysis:
probability = required outcome/possible outcome
for 33 good calculators and 12 defective calculators, total calculators = 45
4 calculators were chosen, possible outcome = 45C4 = 148995
Required outcome = 33C3 . 12C1 + 33C2 . 12C2 + 33C1 . 12C3 + 33C0 . 12C4
= 65472 + 34848 + 7260 + 495 = 108075
Probability = 108075/148995 = 0.725
Learn more about Probability: brainly.com/question/25870256
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the answer to the ? is 126
Answer:
Kaely gets 1,680 and Bro gets 1,120
Step-by-step explanation:
First you need to find how may bucks you will receive with 1$
2,800/25
which equals 112
Then multiply 112 by how much Kaely paid and how much Bro paid. Then you have your answer.
2/3 x 2 = 4/6
1/2 x 3 = 3/6
4/6 - 3/6 = 1/6
6-4 = 2
2 and 1/6
True the scale factor can never ever be greater than 1.
Hope this helped <3
