CBSE Class 8 Mathematics Tales by Dots and Lines MCQs Set I

Question. To find sum of marks from cell B3 to G3, formula used is
(a) =TOTAL(B3:G3)
(b) =SUM(B3:G3)
(c) =ADD(B3:G3)
(d) =B3+G3

Answer: B

Question. Clustered column graph with 52 bars is
(a) Easy to read
(b) Very small
(c) Crowded and difficult to read
(d) Best choice

Answer: C

Question. If every value in the data increases by 10, the new mean increases by
(a) 5
(b) 10
(c) 20
(d) 0

Answer: B

Question. Average family size means adding all members and dividing by total
(a) Families
(b) Students
(c) Houses
(d) Cities

Answer: B

Question. Every value in the data increases by 10. The new mean will
(a) Stay same
(b) Increase by 10
(c) Increase by 5
(d) Decrease by 10

Answer: B

Question. There are 36 values in data. Median will be average of
(a) 1st and 36th value
(b) 18th and 19th value
(c) 10th and 11th value
(d) Any two values

Answer: B

Question. In a dot plot, mean is the point where the data is in
(a) Order
(b) Balance
(c) Line
(d) Boxes

Answer: B

Question. In Punjab, maximum temperature peak is in
(a) January
(b) June
(c) October
(d) December

Answer: B

Question. Humans typically sleep for about
(a) 2 hours
(b) 7 to 9 hours
(c) 20 hours
(d) 15 hours

Answer: B

Question. Arithmetic mean is also called a measure of
(a) Side tendency
(b) Central tendency
(c) Last tendency
(d) Zero tendency

Answer: B

Question. Total students in a family size survey is 36. The median value will be at position
(a) 1st
(b) 36th
(c) Average of 18th and 19th
(d) 10th

Answer: C

Question. If a value equal to the mean is removed, the new mean will
(a) Increase
(b) Stay the same
(c) Decrease
(d) Become zero

Answer: B

Question. Size of a standard Hex board is
(a) 5 x 5
(b) 11 x 11
(c) 2 x 2
(d) 50 x 50

Answer: B

Question. In Kerala, the temperature trend is mostly
(a) Changing a lot
(b) Flat
(c) Very cold
(d) Increasing always

Answer: B

Question. Cell name for Column B and Row 7 is
(a) 7B
(b) B7
(c) B+7
(d) Column 2

Answer: B

Question. Line graphs are generally used to see data change over
(a) Distance
(b) Time
(c) Weight
(d) Money

Answer: B

Question. Average sleep time for 6-year olds is about
(a) 5 hours
(b) 8 hours
(c) 9.5 hours
(d) 12 hours

Answer: C

Question. To calculate new average when 2 students join, we need their
(a) Names
(b) Heights
(c) Roll numbers
(d) Ages

Answer: B

Question. In a line graph, horizontal line usually shows
(a) Temperature
(b) Rain
(c) Months or years
(d) Height

Answer: C

Question. If a number occurs many times in a table, it is called its
(a) Mean
(b) Frequency
(c) Range
(d) Total

Answer: B