Answer: c) 0.75
Step-by-step explanation:
Given : The probability of choosing a black marble is P(Black)= 0.36.
The probability of choosing a black and then a white marble is P( Black and white) = 0.27.
Then by conditional probability ,
The probability of the second marble being white if the first marble chosen is black =
Therefore , the probability of the second marble being white if the first marble chosen is black = 0.75
Answer:
It could be anywhere from eight to 15 members.
Step-by-step explanation:
Answer:
A. Count the members on each team
Hurdles = ⅜ × 40 = 3 × 5 = 15
Long jump = ⅘ × 40 = 4 × 8 = 32
Let's look at the two extremes.
B. Most people will compete in only one event
Then the teams will overlap by seven members (Figure 1).
C. All those in Hurdles compete in the Long Jump
Then 15 members will compete in both Hurdles and Long Jump (Figure 2).
