- A49
- B0
- C7
- D1
Step-by-Step Solution
Every value equals the mean 7, so every deviation is 0 and the SD is 0. Identical values have no spread.
Answer: B) 0
A data set consists of the values 7, 7, 7, 7 and 7. What is its standard deviation?
Competition practiceStatistics
Master this topic in 30 minutes a day.
Don't just memorise the answer — build a daily practice habit.
Practice 5 Similar Questions Free →All Statistics practice questions
More Statistics practice
Find the variance of 4, 9, 14, 19 and 24 (use n as the divisor).Which of these sets of marks has the greatest range?For a set of incomes the lower quartile is ₹34 thousand and the upper quartile is ₹58…A variable x has standard deviation 7. Find the standard deviation of y = 4 − 3x.The box plot summarises the delivery times (in minutes) of food orders from a restaurant…