Thirty of the 198 students enrolled in statistics 101 were asked if they wanted exam ii to be a take-home or an in-class assessment. twenty, or about 67%, of the students polled indicated a preference for an in-class exam. the professor concluded that the majority of students in statistics101 would prefer an in-class examination for the second assessment. did the professor perform a descriptive statistics or an inferential statistics? a) descriptive statistics. b) inferential statistics.

example 2 – simplify: step 1: completely factor both the numerators and denominators of all fractions. step 2: change the division sign to a multiplication sign and flip (or reciprocate) the fraction after the division sign; essential you need to multiply by the reciprocal. step 3 : cancel or reduce the fractions.

a.

step-by-step explanation:

step 1 distribute 2 to every term in the parentheses

step 2 add 10 on both sides of the equal sign

step-by-step explanation:

the true ones are a b and d

on monday rodney ate 1/4th of the sandwich = 3/12

on tuesday he ate 1/3rd of the sandwich = 4/12

therefore in total he has eaten = 3/12 + 4/12 = 7/12

thus we can say that he has eaten 7/12 of the sandwich on monday and tuesday alltogether.

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