Question

probability, Check please? I will post a picture of the question below

Answer 1

for
35. C

36. A ...and if that is wrong my second choice is D

37. C ...but my second choice would be B

Answer 2

Hi! What have you done so far?

Answer 3

yeah i would put b for 37 but the others look right

Answer 4

thank you for looking :)

Answer 5

@jim_thompson5910 could you double check jus to be on the super safe side?

Answer 6

no direct answers!

Answer 7

@pink33 he didn't give me direct answers, he simply check what I already had and agreed :) don't worry!

Answer 8

-_- why u always on my back pink

Answer 9

35)

24+15 = 39 letters total

15 consonants out of 39 letters
P(constant) = 15/39

Once the tile is taken out, a replacement is made. So you'd still have 39 letters

24 vowels out of 39 letters
P(vowel) = 24/39



P(constant then vowel) = P(constant)*P(vowel) ... only works if events are independent
P(constant then vowel) = (15/39)*(24/39)
P(constant then vowel) = (15*24)/(39*39)
P(constant then vowel) = 360/1521
P(constant then vowel) = 40/169


So 40/169 is the correct answer for problem 35

Answer 10

Okay, I wrote that down :)

Answer 11

for 36 I chose A, because it said HE DID NOT REPLACE THE BILL

but D is my backup answer just in case

Answer 12

36)


3 ones + 4 fives + 2 tens = 3+4+2 = 9 bills total


P($10) = (# of tens)/(# bills total)
P($10) = 2/9


No replacements are made, so P($1) is going to be different. In this case, there is one less bill so there are 9-1 = 8 bills total


P($1 based on previous event) = (# of ones)/(# of bills left over)
P($1 based on previous event) = 3/8


Multiply the two values


(2/9)*(3/8) = 6/72 = 1/12


so you have the correct answer for #36

Answer 13

awesome, thank you!

Answer 14

For #37, orange->5/15 ; apple->7/14
(1/3) * (1/2) = 1/6. Your answer is right. C.

Answer 15

37)

P(jonas gets an orange) = (# of oranges)/(# of fruit total)
P(jonas gets an orange) = 5/15
P(jonas gets an orange) = 1/3


NO replacements are made. So there's 15-1 = 14 pieces of fruit left


P(beth gets apple based on prev event) = (# of apples)/(# of fruit left over)
P(beth gets apple based on prev event) = 7/14
P(beth gets apple based on prev event) = 1/2


Multiply the values

(1/3)*(1/2) = 1/6

#37 is also correct

Answer 16

Awesome!! I am gonna finish up my other questions like these, but there are some much harder questions I will end up posting in a few lol

thank you so much to everyone involved in helping me out!