Question

Please help!!!
1. which are dependent events?
A. rolling two number cubes
B. tossing the same coin two times
C. spinning a spinner a rolling a number cube
D. taking two marbles from a box without replacing the first marble

2. suppose Q and R are independent events. Find P(Q and R) P(Q)=0.41, P(R)=0.44
A. 0.03
B. 0.1804
C. 0.85
D. 0.0123

Answer 1

C. is the answer to the first one

Answer 2

the second one is B.

Answer 3

how did you get the second one ?

Answer 4

by multiplying the 2 numbers

Answer 5

How is #1 C? My opinion would be D. a dependent event, it is DEPENDENT on another event such as not replacing a marble...spinning a spinner and rolling a die are 2 separate independent events

Answer 6

yeah i got D for that one

Answer 7

Good...and yes 2 would be B, you would multiply the 2 independent event probabilities together

Answer 8

oh okay yeah thats what i thought could you help me with one more ?

Answer 9

so i did it right ? i always got that kind of problem wrong lol

Answer 10

you roll a six-sided number cube. which event are mutually exclusive ?
A. rolling a multiple of 2 and a multiple of 4
B. rolling a multiple of 3 and a multiple of 6 (my answer)
C. rolling an even number and an odd number
D. rolling a prime number and an even number
is this right ?

Answer 11

maybe

Answer 12

why do u say B. is the right answer?

Answer 13

because it makes sense to go up by evens right ?

Answer 14

ok

Answer 15

so if u say it makes sense to go up in evens then it would either be A. or B. right?

Answer 16

yeah but it makes more sense condsidering it is a six sided cube so it would be 2 and 6

Answer 17

yes that is correct so the most probable answer is B. then

Answer 18

okay thank you :)

Answer 19

u r welcom need anymore hlp?