Instructions of Assignment-1(STAT-101)The display date of Assignment 1 is Wednesday, December 28, 2022, 11:00 P.M.
The due date of Assignment 1 is Monday, January 02, 2023, at 11:00 PM.
Assignment 1 covers the material of Weeks 1, 2, 3, & 4 (Chapters-1, 2, 3, 4 & 5)
The assignment consists of 25 questions
10T/F (0.25 marks each) and 15MCQ (0.5marks each)
Total Marks = 10
The following is a frequency distribution table for the kids ages in a nursery:
0 – 11
12 – 23
24 – 35
The mean kids’ age in this nursery is 13.33.
The midrange of these data sets (22, 22, 26, 24, 23, 25) is 24.
The frequency table for certain data is given in the following table:
The Relative frequency for the class 30-39 is 0.25
Let the total frequency of a distribution is 50. If the relative frequency of a class of
this distribution is 0.20, then the frequency of that class is 1.
The frequency distribution for a certain data is given from the following table
Then the percentage frequency for the class 90-99 is:
In the frequency distribution, the classes are 25–29, 30–34, etc. If the data
values are 36, 37, 38, 39, 27, 28, 29, 30, 31, 32, 33, 34, 35, 40, 41, 42, 43,
44, then the frequency of the class 35–39 is
If the relative frequencies of class-intervals of a distribution are 0.20, 0.10, x, 0.25 &
0.15. Then the value of the missing value x is
What is the frequency of the class 20-29 for the given cumulative frequency table?
Less than 10
Less than 20
Less than 30
Less than 40
Less than 50
If events A and B are independent, then P(A and B) = P(A). P(B).
A fair die with six faces is rolled once; the probability of getting an odd number is
Let the maximum usual value of a data set is 150. If the mean of this set is 130, then
the standard deviation of the data set using Range rule of thumb is
The mean of the even numbers from 1 to 10 is:
A student had the following grades in the related courses:
Given the weights of the courses, the weighted mean grade of the student is:
At one college, GPA’s are normally distributed with a mean of 2.6 and a standard
deviation of 0.4. According to empirical rule, What percentage of students at the
college have a GPA between 1.8 and 3.4?
In a Binomial distribution, n = 2 and P(0) =0.7056. Use the formula of the
Binomial distribution to find p
The random variable X has the following probability distribution.
The value of k is
The random variable X has the following probability distribution:
The value of k is
A couple has 3 children. What is the probability that they have exactly two boys?
A card is selected at random from a pack of 52 cards. What is the probability that the
card is either an ace or red color?
In a population, individuals are divided into blood groups: A, B, AB and O and within
each group into Rhesus + or – according to the following table:
An individual is chosen at random. Giving that he/she has Rhesus –, the probability
that he/she is group O is:
The number of cars going at a speed of 200 km/h on a particular highway is an
example of Continuous Data.
Ordinal level of measurement is most appropriate for temperatures of the ocean at
Which type of sampling is used in the statement, ‘On the day of the last presidential
election, ABC News organized an exit poll in which specific polling stations were
randomly selected and all voters were surveyed as they left the premises.’
The length of time of a particular phone call is an example of continuous random
A Binomial random variable has a mean equal to 5 and a standard deviation of 2. So,
the probability of success in single trial, p = 0.8
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