STA301 Midterm Solved MCQs with References by Moaaz

Solved MCQS From Midterm Papers · March 19,2012 · PSMD01 · A five number summery consist of : · 97)

m

X · Q Median Q andX · Page

m X Q Mean Q and X

m X Q Mode Q and X

m X Q Median Q andX

in a multiplication theorem P A B equals:

1. P(A) P(B)
2. P(A) + P(B)
3. P(A) * P(B|A) (Page 159)
4. P(B\A) * P(B)

Correct answer: P(A) * P(B|A) (Page 159)

Q4. The probability of drawing ‘White’ ball from a bag containing 4 red , 8 black and 3 white ball is (1 marks)

1. 0
2. 3/15
3. 1/12
4. 1/2

Correct answer: 3/15

If A and B are mutually exclusive events then P(A or B) equals:

1. P(A) + P(B) - P(A and B)
2. P(A) * P(B)
3. P(A) + P(B) (Page 155)
4. P(A|B) + P(B|A)

Correct answer: P(A) + P(B) (Page 155)

The simultaneous occurrence of two events is called

1. Prior probability
2. Subjective probability not confirmed
3. Conditional probability

First moment about origin is always equals to:

1. Mean (Page 119)
2. Variance
3. Standard Deviation
4. Zero

Correct answer: Mean (Page 119)

Which one of the following measurement does not divide a set of observations into equal parts?

1. Quartiles
2. Deciles
3. Percentiles
4. Standard deviations

Correct answer: Standard deviations

if first and third quartile are 21.16 and 56.36 respectively, then the quartile deviation is:

1. 17.1 (Page 84)
2. 34.2
3. 51.3
4. 50.5

Correct answer: 17.1 (Page 84)

The height of student is 60 inch. This is an example of……?

1. Continues data
2. Qualitative data
3. Categorical data
4. Discrete data

Correct answer: Discrete data

Q12. Which of the statement is true regarding a sample? (1 marks)

1. It is a part of population (Page 13)
2. It must contain at least five observations
3. It refers to descriptive statistics
4. It produces true value

Correct answer: It is a part of population (Page 13)

Which one of the following graphs is used for a time series data?

1. Histogram
2. Historigram
3. Frequency curve

Which of the following comes first to make frequency distribution

1. No. of groups
2. Class intervals
3. Rang (Page 28)
4. Tally marks

Correct answer: Rang (Page 28)

The average which is defines as reciprocal of arithmetic mean of the reciprocals of the values is called

1. Geometric Mean
2. Harmonic mean (Page 77)
3. Mode
4. Median

Correct answer: Harmonic mean (Page 77)

If a car is running at the rate of 15km/hr during first 30km, at 20km/hr during the second 30, which type of average will be used to find the average speed/hr:

1. Weighted mean (Not sure)
2. Harmonic mean
3. Arithmetic mean
4. Geometric mean

Correct answer: Weighted mean (Not sure)