You visited us 1 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard XII

Mathematics

Standard Deviation about Median

The standard ...

Question

The standard deviation of $5$ items is found to be $15$ . What will be the standard deviation if the values of all the items are increased?

15

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

20

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

10

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

None of the above

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

Open in App

Solution

The correct option is A $15$
Standard deviation is the square root of the arithmetic mean of the squares of the deviations measured from the arithmetic mean of the data. Standard deviation is not affected by the increase of decrease of observations in the series.

Suggest Corrections

Similar questions

Q. The mean and the standard deviation of a group of

20

items was found to be

40

and

15

respectively. While checking it was found that an item

43

was wrongly written as

53

. Calculate the correct mean and standard deviation.

Q. The Standard Deviation of a sample of size 10 is 11. If the value of each sampled item is reduced by 2, the new Standard deviation will be

Q. The first of the two samples in a group has

100

items with mean

15

and standard deviation

3

. If the whole group has

250

items with mean

15.6

and standard deviation

\sqrt{13.44}

, then the standard deviation of the second sample is

Q. A group has

250

items with mean and standard deviation equal to

15.6

and

\sqrt{13.44}

respectively. If the second group of two samples has

100

items with mean equal to

15

and standard deviation equal to

3

, then the standard deviation of first group is

Mean and standard deviation of two distributions of 100 and 150 items are 50, 5 and 40, 6 respectively. Find the standard deviation of all the 250 items taken together.

Join BYJU'S Learning Program

The standard deviation of 5 items is found to be 15. What will be the standard deviation if the values of all the items are increased?

The correct option is A 15Standard deviation is the square root of the arithmetic mean of the squares of the deviations measured from the arithmetic mean of the data. Standard deviation is not affected by the increase of decrease of observations in the series.

The standard deviation of $5$ items is found to be $15$ . What will be the standard deviation if the values of all the items are increased?

The correct option is A $15$
Standard deviation is the square root of the arithmetic mean of the squares of the deviations measured from the arithmetic mean of the data. Standard deviation is not affected by the increase of decrease of observations in the series.