Five of your classmates measured the following baseline pulse rates in their worms: 9, 8, 7, 8, and 8 pulses per minute. What is the standard deviation for the measurements?

0.63

Explanation:

Given that:

baseline pulse rates in their worms = 9, 8, 7, 8, and 8 pulses per minute.

What is the standard deviation for the measurements?

Formula for solving standard deviation (σ) =

where;

N = number of people in the population

= individual entity in the population

x' = population mean

Our data given includes: 9,8,7,8,8 only

re-arranging what we have above in increasing order; we have:

7,8,8,8,9

∴ N = 5

x'(population mean) =

x'(population mean) =

x'(population mean) =

x'(population mean) = 8

                       (-x')                  (-x')²

     7                   (7-8) = -1              (-1)²=1

     8                   (8-8) = 0             (0)²=0

     8                   (8-8) = 0             (0)²=0

     8                   (8-8) = 0             (0)²=0

    9                   (9-8) = 1               (1)²=1            

= 40         = 0     = 2

(σ) =

(σ) =

(σ) =

(σ) = 0.63248

(σ) = 0.63

∴  the standard deviation for the measurements = 0.63

it means

miss jennifer is buying pencils in packs of 12, notebooks in packs of 16, and red pens in boxes of 20. she needs to have the same number of pencils, notebooks, and red pens. how many packs of each type should she buy?

answer mine : )

the wires in the toaster turning red and the toast crisping and turning brown