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3 years ago

5

This table shows how many sophomores and juniors attended two school events. What is the probability that the student attended t

he jazz concert, given

1 answer:

Eduardwww [97]3 years ago

6 0

Answer:

A. 0.60

Step-by-step explanation:

make a proportion so

36 over 60 = x over 100

36*100= 3600

3600/60

60

.60

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3 years ago

There were 6 purple socks and 4 oraange socks without looking and then another without looking (or replacing the first). What is

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The probability that he picked 2 purpled socks is <u>0.33</u>.

Step-by-step explanation:

Given:

Number of purple socks, $n(P) = 6$

Number of orange socks, $n(O) = 4$

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Now, total number of socks, $n(T)=N(P)+n(O)=6+4=10$

Probability of picking the first cap as purple cap is given as:

$P(P1)=\frac{n(P)}{n(T)}\\\\P(P1)=\frac{6}{10}=\frac{3}{5}$

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Therefore, probability of picking the second cap as purple cap is given as:

$P(P2)=\frac{n(P)-1}{n(T)-1}\\\\P(P2)=\frac{5}{9}$

Now, probability that both the picked caps are purple is given by their probability product. This gives,

$P(P1\ and\ P2)=P(P1)\times P(P2)\\\\P(P1\ and\ P2)=\frac{3}{5}\times\frac{5}{9}\\\\P(P1\ and\ P2)=\frac{3}{9}=\frac{1}{3}=0.33$

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