Karen had 200 after spending y pesos on a notebook,she bought 4 colored pens with the rest of her money,what was the price of ea
1 answer:
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It is given in the question that
You work at a T-shirt printing business. Of 1,300 T-shirts shipped, 106 are imperfect.
So out of 1300 T-shirts, number of perfect t-shirts are
So probability that the t-shirt is printed correctly is
And to find the percentage, we have to multiply it by 100, and on doing so we will get 92 % .
Answer:
a) 0.98% probability that 17 of the 29 people are men.
b) 3.86% probability that the first woman is reached on the 8th call
Step-by-step explanation:
For each person chosen by the agency, there are only two possible outcomes. Either it is a man, or it is a woman. The probability of selecting a man or a women in each trial is independent from other trials. So we use the binomial probability distribution to solve this question.
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.
In which is the number of different combinations of x objects from a set of n elements, given by the following formula.
And p is the probability of X happening.
(a) What is the probability that 17 of the 29 people are men?
This is P(X = 17) when . So
0.98% probability that 17 of the 29 people are men.
(b) What is the probability that the first woman is reached on the 8th call?
On the first 7 trials, all men, each with a 78% probability.
On the 8th trial, a women, with a 22% probability. So
3.86% probability that the first woman is reached on the 8th call
