Answer:
6.27
Step-by-step explanation:
We are to obtain the standard deviation of the given values :
{24, 18, 31,25, 34}
The standard deviation = √(Σ(x - mean)²/ n)
The mean = (ΣX) /n
Using calculator to save computation time :
The standard deviation, s = 6.27 (2 decimal places)
11 because 275÷25 is 11. 11 calculators would cost 275 in total
The mode is 7.
Mode means most and 7 hours of sleep is the most frequent.
I don’t know for sure but maybe 60?
