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Questions (20)
At a certain university, 50% of all entering freshmen planned to major in a STEM (science, technology, engineering, mathematics)
2 answers
907 views
74% of freshmen entering public high schools in 2006 graduated with their class in 2010. A random sample of 81 freshmen is
0 answers
692 views
It has been reported that 48% of teenagers play video games on their phones. A random sample of 60 teenages is drawn. Find the
1 answer
793 views
According to one pollster, 48% of people are afraid of flying. Suppose that a sample of size 20 is drawn. Find the value of
0 answers
694 views
At a certain concert, 43% of the audience was under 20 years old. A random sample of n = 181 members of the audience was
0 answers
645 views
Suppose that the weight of male babies less than 2 months old is normally distributed with mean 11.5 pounds and standard
1 answer
1,035 views
Find the z-score for which the area to its left is 0.46 .
Write only a number as your answer. Round to two decimal places (for
1 answer
770 views
Find the z-score for which the area to its right is 0.65 .
Write only a number as your answer. Round to two decimal places (for
1 answer
782 views
The z-scores that bound the middle 35 % under the standard normal curve are z = -a and z = a. Find the value of a.
Write only a
1 answer
611 views
Find z 0.44 .
Write only a number as your answer. Round to two decimal places (for example: 0.81).
1 answer
579 views
In a certain class 27% of the students are left-handed. suppose that a random sample of 53 students is selected. Find the mean
1 answer
892 views
At a car rental agency, 0.34 of the cars are returned on time. A sample of 13 car rentals is studied. What is the probability
0 answers
553 views
The Probability that a randomly selected commuter listens to audiobooks during their commute is 0.49. Suppose that a sample of
2 answers
1,044 views
The probability that a student uses Smarthinking online tutoring on a regular basis is 0.41. In a group of 21 students, what is
1 answer
2,363 views
An investor is considering an investment in a start-up company. she estimates that she has probability 0.25 of a $ 39,739 loss,
1 answer
4,154 views
A number of people were asked how many days they would wait to seek medical treatment if they were suffering pain that
3 answers
5,680 views
The probability of winning something on a single play at a slot machine is 0.29. After 6 plays on the slot machine, What is the
2 answers
1,516 views
At a local university, when scheduling classes, the probability that there are no evening classes available on a certain day is
0 answers
636 views
A group of freshmen and sophomore students was selected and each was asked whether they were a member of a student club. The
1 answer
1,443 views
Types of bonds are divided into three categories: good risk, medium risk, and poor risk. Assume that of a total of 13,838 bonds,
0 answers
764 views
Answers (3)
convex and divergent
i just need to know how to do it
no i just need help knowing to go about it!
