A mint produces 150000 souviner coins each year. In a random sample of 400 coins, 3 have a misprint. Predict the number of coins
that will have misprints in a year
1 answer:
Answer:
1125 coins
Step-by-step explanation:
To predict the number of coins with problem, we assume that for each 400 of the 150000 coins, we have 3 with misprint.
So, using rule of three, if 400 coins have 3 coins with problems, 150000 coins have X coins with problem:
400 -> 3
150000 -> X
400/150000 = 3/X
X = 150000*3/400 = 1125
We predict that 1125 coins will have a misprint.
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