Answer:
I. 60%
II. 75.4 kg
Step-by-step explanation:
We will use the z-scores and the standard normal distribution to answer this questions.
We have a normal distribution with mean 69 kg and variance 25 kg^2 (therefore, standard deviation of 5 kg).
I. What percentage of adult male in Boston weigh more than 72 kg?
We calculate the z-score for 72 kg and then calculate the associated probability:
II. What must an adult male weigh in order to be among the heaviest 10% of the population?
We have to calculate tha z-score that satisfies:
This happens for z=1.28 (see attachment).
Then, we can calculate the weight using this transformation:
Answer:
Step-by-step explanation:
D: x ≥ -2. This set includes x = -2 and all numbers greater than -2.
Answer:
d. A hypothesis is derived from the evidence at hand; the evidence produces the hypothesis.
Step-by-step explanation:
Null hypothesis is a statement that is to be tested against the alternative hypothesis and then decision is taken whether to accept or reject the null hypothesis. The evidence suggests that a certain hypothesis is tested for its reliability. The hypothesis is accepted or rejected on the basis of its underlying evidences.
Answer
Find out the do they have enough tickets altogether for a prize that is worth 100 tickets .
To prove
For each balloon game you win at the fair, you get 5 tickets.
Jamal won 9 balloons games.
Thus
Total number of tickets Jamal have = 9 × 5
= 45 ticket
Gary won 6 balloon games.
Total number of tickets Jamal have = 6 × 5
= 30 ticket
Total number of ticket Jamal and Gary have = 45 + 30
= 75 tickets
No, they do not have enough tickets altogether for a prize that is worth 100 tickets .
Answer:
10875
Step-by-step explanation:
of always means you have to multiply
