Question

need answers!!!

i Find the indicated probability by using the complementation rule. 13) The age distribution of students at a community college ls Ewer 13) Under 21 21-24 25-28 29-32 33-36 37-40 Over 40 144 102 85 1457 A student from the community college is selected at random. Find the student is under probability that the 37 years old. Give your answer as a decimal rounded to three decimal places A) 0.070 B) 0.034 C) 0.092 D) 0.908 Find the indicated probability by using the general addition rule. 14) For a person selected randomly from a certain population, events A and B are defined as follows. A - event the person is male B- event the person is a smoker For this particular population, it is found that P(A)-0.49, P(B)-0.26, and PA &B)-0.15. Find PA or B). Round approximations to two decimal places C) 0.90 D) 0.75 A) 045 B) 0.60 Find the specified probability 15) 15) A statistics professor has office hours from 9:00 am to 10:00 am each day. The number of students waiting to see the professor is a random variable, X, with the distribution shown in the table 0112131415 PX-x 0.050.10 0.40 0250.15 0.05 10 minutes. Determine the probability that a student arriving The professor gives each student just after 9:00 am will have to wait at least 10 minutes to see the professor C) 0.95 D) 0.20 B) 0.40 A) 0.10 Use a table of areas to find the specified area under the standard normal curve. 16) The area that lies to the left of 1.13 D) 0.8907 C) 0.8708 B) 0.8485 A) 0.1292

Answer 1

for any query, comment.

IAS タpercentile 294 FALSE CB