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harkovskaia [24]
3 years ago
10

In a science test Jamie solved 42 correct and 18 incorrect answers what is the percentage of correct questions

Mathematics
2 answers:
Mkey [24]3 years ago
6 0
The percentage is 2.3
snow_lady [41]3 years ago
6 0
42 - 18 = 24
24 people had correct answers
24/42 = 57%
57%, Hope this helps!
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Answer:

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X-Y=12

Step-by-step explanation:

fiction books= X

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then,

fiction books= X

non fiction books = X-12

but Y= X - 12

from. the statement,

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A softball pitcher has a 0.675 probability of throwing a strike for each pitch and a 0.325 probability of throwing a ball. If th
Dafna11 [192]

Answer:

The probability that exactly 19 of them are strikes is 0.1504

Step-by-step explanation:

The binomial probability parameters given are;

The probability that the pitcher throwing a strike, p = 0.675

The probability that the pitcher throwing a ball. q = 0.325

The binomial probability is given as follows;

p(x) = _{n}C_{x}\cdot p^{x}\cdot q^{1-x}

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Therefore, the probability that the pitcher throws 19 strikes out of 29 pitches is found as follows;

The probability that exactly 19 of them are strikes is given as follows;

\binom{29}{19}(0.675)^{19}0.325^{10} = \frac{29!}{19!\times 10!}\times (0.675)^{19}\times 0.325^{10} = 0.1504

Hence the probability that exactly 19 of them are strikes = 0.1504

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3 years ago
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