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Statistics Quiz 6

Answer these simple questions correctly and earn coins

Difficulty Level :
10 Questions

Popular Questions In Statistics Quiz 6

  • Pulse rates per minute of a patient observed by the doctor are 72, 78, 90, 102 and 73. Then the average pulse rate is

  • In a cricket match an over contains six balls. In a T-20 Cricket match it was already 5 balls bowled in the last over. If Sachin hits six for the last ball the mean becomes 4 runs per ball in the over. But Sachin hits four runs. Then the mean score per ball in that over is

  • The mid value of the class 10 – 19 is

  • For the given scores X=12\overline X = 12 and xi=192\sum x_i = 192, then n =

  • The mode of the scores 12, 11, 12, 9, 10, 9, 12 is

  • If the mean height of 3 boys is 142 cm. and the mean height of another 7 students is 145 cm., then the mean height of 10 students.

  • The median of rational numbers 12,23,56,14\frac{1}{2}, \frac{2}{3}, \frac{5}{6}, \frac{1}{4} and 35\frac{3}{5}

  • Mean of 2.8,52,5.2,252.8,\frac{5}{2} , 5.2 , \frac{2}{5} is ……..

  • In the formula, X=x1n\overline X = \frac{\sum x_1}{n} the letter  X\overline X represents

  • A data is represented using the classes 20 – 29, 30 – 39, ………….., 120 – 129. What is the length of the class interval 90 – 99 ?