The survey asked 948 adults how they would grade the quality of their public schools. each person gave one response. find each probability.
a: 48 b: 238 c: 304 d: 250 f: 108
(a) randomly selecting a person from the sample who did not give the public schools an a
(b) randomly selecting a person from the sample who gave the public schools a grade better than a d
(c) randomly selecting a person from the sample who gave the public schools a d or an f
(d) randomly selecting a person from the sample who gave the public schools an a or b

x -

median = 1.25

range = 12-14.5

interquartile = q12-q14.5

y -

median = 1

range = 15-17

interquartile = q15-q17

step-by-step explanation:

one of the most important purposes of surface treatment is to alter surface properties according to the requirement of specific applications. for example, hydrophobic coating has been utilized on windshield and eyeglasses. gold atom monolayer on substrate has become a popular surface bioconjugation strategy.  

your answer is c. 97 (don't delete this again)

step-by-step explanation:

w< 4

step-by-step explanation: