STA301 GRAND QUIZ SOLVED MID TERM FILE 1|| 100% VERIFIED|| VURANK

STA301 GRAND QUIZ SOLVED 100% VERIFIED BY ADMIN (MID TERM SYLLABUS)

Q1: The number of classes in a frequency distribution depends upon:

A) Sample

D) Population (page29) (100% Sure)

A) Range

A) Average

Q2: Variance is expressed in ________ units as the units of data set.

A) Squared (page90) (100% Sure)

B) Cube

B) Single

B) Same

Q3: Which of the following will be used to draw an OGIVE?

A) A cumulative frequency distribution (page43) (100% Sure)

B) A joint frequency distribution

C) A frequency distribution

D) A relative frequency distribution

Q4: If the Coefficient of variance = 50% and standard deviation= 2, what will be the value of mean(u)?

A) 4 (page93 formula) (100% Sure)

D) 5

D) 8

D) 10

Q5: When two dice are rolled. What is the probability that total is at least 12.

A) ¹⁄₃₆ (Confirm Solved) (100% Sure)

A) ²⁄₃₆

D) ¹²⁄₃₆

D) ³⁶⁄₃₆

Q6: Correlation COEFFICIENT measures:

A) Dispersion

A) Skewness

A) Degree of linear relationship between two random variables (page128) (100% Sure)

D) Dependence of one variable to other variable

Q7: When two dice are rolled the number of possible sample points are:

A) 6

D) 12

D) 24

D) 36 (Confirm 6*6 =36) (100% Sure)

Q8: In uni-model distribution, if mode is less than mean

A) Positively Skewed (page98) (100% Sure)

A) Negatively Skewed

A) Symmetrical

D) Symmetrical

Q9: Dispersion means the ________ that exists in a data set.

C) Similiarty

D) Variability (page51) (100% Sure)

D) Strength

D) Weakness

Q10: The number of elements in the Power set P(S) of the set S = [[Φ], 1, [2,3]] is:

A) 3

B) 4

B) 8 (2ⁿ = 2³ = 8) (100% Sure)

B) 6

Q11: In how many ways a group of 5 men and 2 women be made out of a total of 7 men and 3 women?

A) 63 (100% Sure) Click Here For Reference

B) 54

C) 86

D) 156

Q12: The _______ is the value you calculate when you want the arithmetic average:

A) Mode

B) Median

C) Mean (page58) (100% Sure)

D) All above

Q13: Which of the following is a subset of population?

A) Distribution

B) Sample (Confirm) (100% Sure)

C) Data

D) Set

Q14: When coin is tossed, the sample space consist of:

A) 2 outcomes (page145) (100% Sure)

B) 4 outcomes

C) 6 outcomes

D) 8 outcomes

Q15: In a week the prices of a bag of rice were: 350,280,340,290,320,310,300 The mid range is:

A) 320

B) 315 (^{(360 + 280)}⁄₂ = 315) (100% Sure)

C) 300

D) 420

Q16: Sometimes mean deviation can also be calculated around:

A) Quartiles

B) Deciles

C) Median (page89) (100% Sure)

D) None of the above

Q17: If the median of two observations is 8, then mean of these two observations will be:

A) 7

B) 9

C) 8 (^(16+16)⁄₂ = 8) (100% Sure)

D) 6

Q18: A teacher asked 10 of her students how many books they had read in the last 12 months. Their answers were as follow: 12,13,19,6,7,15,25,21,12 The stem part is:

A) 12,6,7,10

B) 0,1,2 (page47) (100% Sure)

C) 1,2,3,7,6

D) 25,21,12

Q19: A fair die is rolled. Probability of getting even face given that face is less than 5 is given by:

A) ¹⁄₂ (²⁄₄ = ¹⁄₂) (100% Sure)

B) 5

C) 2

D) 6

Q20: The first and third quartiles are 22.16 and 56.36 respectively, then the quartile deviation is:

A) 17.1 (^{(56.36 - 22.16)}⁄₂ = 17.1) (100% Sure)

B) 30.5

C) 50.5

D) 51.3

Q21: Consider a set A = {4,6,8,10}. What is the number of subsets of A?

A) 2

D) 8

D) 10

D) 16 (2⁴ = 16) (100% Sure)

Q22: In case of frequency distribution, the second quartile is given by the formula:

A) l + 2h/f(n/2-c)

B) l + f/h(n/4-c)

B) l + f/h(2n/4-c)

B) l + h/f(2n/4-c) (page69) (100% Sure)

Q23: Suitable average for averaging the shoe sizes for children is:

A) Mean

B) Mode (Confirm) (100% Sure)

B) Median

B) Geometric Mean

Q24: If we flip a coin five times, then possible outcomes of the sample space are:

A) 2

B) 4

B) 16

B) 32 (2⁵ = 32) (100% Sure)

Q25: For a symmetrical distribution having 10 values the mean is 20. Which one of the following is the mode of the distribution:

A) 20 (mean = mode = median) (100% Sure)

B) 10

B) 5

B) 15

Q26: Let A and B are two dependent events such that P(B)=1/3, P(A/B)=1/2 and P(B/A)=1/3. Find P(AnB).

A) 1/6 (¹⁄₂ * ¹⁄₃ = ¹⁄₆) (100% Sure)

B) 1/9

B) 1/2

B) 1/3

Q27: Quartile Deviation is also defined as:

A) Interquartile Range

B) Semi range

B) Semi interquartile range (page85) (100% Sure)

B) range

Q28: The types of frequency distribution are:

A) 3

B) 4 (page38) (100% Sure)

B) 5

B) 2

Q29: The data which has undergone any statistical treatment is called:

A) Primary data

B) Secondary Data (page11) (100% Sure)

B) Qualitative data

B) Quantitative Data

Q30: A bag contains 12 red balls and 12 blue balls. A ball is drawn at random. The probability that ball drawn is red is:

A) 1/2 (12/24 = 12) (100% Sure)

B) 5/11

B) 6/10

B) 1