Find the standard deviation, s, of sample data summarized in the frequency distribution table below by using the formula below, where x represents the class midpoint, f represents the class frequency, and n represents the total number of sample values. also, compare the computed standard deviation to the standard deviation obtained from the original list of data values, 11.1. equals startroot startfraction n left bracket summation from nothing to nothing left parenthesis f times x squared right parenthesis right bracket minus left bracket summation from nothing to nothing left parenthesis f times x right parenthesis right bracket squared over n left parenthesis n minus 1 right parenthesis endfraction endroot interval 20-26 27-33 34-40 41-47 48-54 55-61 62-68 frequency 2 2 6 4 11 39 30

b

step-by-step explanation:

the word superfluous means unnecessary

this excerpt is taken from the book “we shall not be moved : the women’s factory strike of 1909 “ and is written by joan dash. it is the story of the great strike when almost 30thousand women working in factories in america formed a union to fight unsafe working conditions, long working hours and miserable wages.

question: which best states the author’s purpose for including this information in the text?

answer: to challenge the reader’s ideas about a historical event

whole number data type

step-by-step explanation:

as whole number type represents whole number

like 1, 2 ,3, 4

in other words the whole numbers are those numbers which cannot be written infraction.

since we can take days as a whole number i.e 1 day 2 day and we cannot write 1.2 day hence we will use whole number data type

1/2(2*4)=6 $$- agahajakanajak