can you solve these statistic questions?
TOPPING FRESHMAN SOPHO- JUNIOR SENIOR
vanilla 75 99 70 70
chocolate 85 50 100 90
raspberry 55 60 75 80
#1 question. find the probability that randomly selected student who likes chocolate or raspberry ice cream.
#2.find the probability that randomly selected student will be sophomore and likes raspberry ice cream only
#3. find the probability that randomly selected student doesn’t like vanilla ice cream?
#4find the probability that randomly selected student prefer vanilla ice cream
#5. find the probability that randomly selected student will be freshman or who likes chocolate ice cream.
please show me the work. i am not looking for the answer. i am looking more how to solve it with formulas and all. thanks guys!
Favorite Answer
vanilla total = 314
chocolate total = 325
raspberry total = 270
freshman = 215
sophomore = 209
junior = 245
senior = 240
total people = 909
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probabilities are defined as the number of successes divided by the total number of possible outcomes.
there are 909 possible students to be asked, 325 + 270 = 595 who like chocolate or raspberry. the prob is therefore 595/909
——
the number of sophomores who like raspberry ice cream is 60. there are 909 total students, the prob is 60 / 909
——–
same as 1, if they don’t like vanilla, then they like one of the other two.
——
total number of vanilla / total students
= 314 / 909
——-
freshman who like chocolate = 85
total students = 909
prob = 85 / 909
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