multiplied by $2$

60

No worries! We‘ve got your back. Try BYJU‘S free classes today!

55

No worries! We‘ve got your back. Try BYJU‘S free classes today!

64

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

50

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C $64$
Mean of $15$ observations $=$ $32$
Sum of $15$ observations $=$ $15 \times 32$ = $480$
Since, each observation is multiplied by $2$ , new sum $=$ $15 \times 32 \times 2$ = $960$ .
Thus, new mean $=$ $\frac{s u m}{n u m b e r o f o b s e r v a t i o n}$ $=$ $\frac{960}{15}$ $=$ $64$

Suggest Corrections

Similar questions

{[(\frac{- 5}{2})]}^{3}

{(\frac{- 2}{5})}^{5}

60

X	$30 - 34$	$40 - 44$	$45 - 49$	$50 - 54$	$55 - 59$	$60 - 64$
f	$3$	$5$	$12$	$18$	$14$	$62$

30 - 40, 40 - 50, 50 - 60, . . .

65, 34, 74, 49, 52, 35, 71, 55, 61, 40, 56, 38, 52, 56, 52, 33, 60, 35, 49, 37, 53, 50, 44, 30, 62, 50, 47, 45, 47, 50, 63, 61, 54, 58, 47, 64, 37, 38, 44, 42, 47, 55, 70, 33, 75, 49, 47, 30, 60, 69

Join BYJU'S Learning Program