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A population consists of the numbers 2, 4, 5, 9, 10. List all possible sample size of 3 from this population without replacement and determine the mean of each sample.
- The probability that a student must stop at any one traffic light going to NUST from Havana is 0.2. There are 15 traffic lights on the Journey.
a) what is the probability that a student will stop at exactly two of the 15 set of traffic lights?
b) what is the probability that a student will stop at 3 or more of the 15 set of traffic lights?
A teacher realizes that his students' marks on a statistic test are normally distributed with a mean of 62 and a standard deviation of 15. If the teacher wishes to assign minimum marks for grade B is referring to the top 30 per cent of the students' marks in the class, how many marks are required to get a minimum mark for grade B?
Find the volume of the solid formed by the region bounded by the functions
y = 6 - 2x - x^2, y = x + 6
Using the same universal set, find the set specified by each of these bit strings.
(i) 11 1100 1111 (ii) 01 0111 1000 (iii) 10 0000 0001
{x | x is the square of an integer and x < 50}
Determine the area under the standard normal distribution curve to left of -0.73.
Determine the area under the standard normal distribution curve between -0.91 and 2.5.
Determine the area under the standard normal distribution curve between -0.91 and 2.5.
The Smith Trucking Company claims that the average weight of its delivery
trucks when fully loaded is 6000 pounds with a standard deviation of 120
pounds. 36 trucks are selected at random and their weights recorded.
Within what limits will the average weights of 90% of the 36 trucks lie?
#339914 on Dec 2023