Answer:
b
Step-by-step explanation:
We have that the probability of Janice rolling a 2 or 5 on her 7th toss of the dice is

From the question we are told that
Janice rolled either a 2 or a 5 on the last 6 rolls of the die
Janice rolling a 2 or 5 on her 7th toss of the dice

Where

Janice roll the standard die 7th time the probability of getting 2 or 5 is

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Answer:

Step-by-step explanation:


Use <em>FOIL</em> method.


Answer: 132
Step-by-step explanation:
No she not correct. 80% of the students are wearing tennis shoes