Solve the problem and enter your answer below. What is 14% of 55?
2 answers:
Answer:
Step-by-step explanation:
Percentage is a number or ratio expressed as a fraction of 100.
So 14% means, 14 ratio 100.
So 14% of 55 means 14 ratio 100 of 55
Then,
14% of 55
14/100 × 55
Divide both numerator and denominator by 2
7/50 × 55
Also, divide both numerator and denominator by 5
7/10 × 11
77/10
Which is 7 whole number, 7 over 10
7 7/10
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Answer:
A) probability that at least x of them will require repairs is less than 0.5 is 4
Step-by-step explanation:
sample size, n = 20
p = success probability of toaster = 0.2
q = failure probability of toaster =1- p = 1- 0.2 =0.8
mean, , μ = n * p = 20 * 0.2 = 4
standard deviation,
a) the probability that at least some of them require repairs < 0.5.
for value of z = 0
we know
from z table
X = 4
B) SECOND PART IS INCOMPLETE { DATA IS INCOMPLETE}