The list below shows the number of seconds each of 15 dogs took to complete an obstacle course. 52, 51, 57, 63, 56, 50, 57, 59, 43, 59, 52, 58, 57, 45, 51
What is the standard deviation of the numbers listed?
O 5.49
O 15
O 56
O 54

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step-by-step explanation:

i hope this : )

the answer is d

step-by-step explanation:

you can also use mathway to get you answer + steps

yes, gavin is right.

step-by-step explanation:

gavin is correct. 

this problem is about converting 9% per year to how many percent per quarter. the rate is still the same. it only differed in the time period. so, through dimensional analysis,

9% per year  × (1 year / 4 quarters) = 2.25% per quarter

if he was asked to convert 9% per year to how many percent per quarter  compounded quarterly, then you will not simply divide by four. this is because compounding is not linear.

hope this , have a good day. c;

it is a horizontal line.