1- For the event described below, which of the following represents the compleme

Question

1- For the event described below, which of the following represents the complement of the event.
A sample of 372 software DVDs was selected. At least 47 of these were defective.

Question options:

A)

Exactly 47 DVDs were not defective.

B)

At most 325 DVDs were not defective.

C)

Fewer than 47 DVDs were defective.

D)

At most 47 DVDs were defective.

2- If a single card is drawn from an ordinary deck of cards, what is the probability of drawing a jack, queen, king, or ace?

Question options:

A)

B)

C)

D)

3- A fair coin is tossed four times. What is the probability that the sequence of tosses is HHHT?

Question options:

A)

B)

C)

D)

A)

B)

C)

D)

3- A fair coin is tossed four times. What is the probability that the sequence of tosses is HHHT?

Question options:

A)

0.0625

B)

0.125

C)

0.038

D)

0.25

Explanation / Answer

1)

D)

At most 47 DVDs were defective.

2)as there are 4 cards each of  jack, queen, king, or ace ; total 16 cards out of 52

probability of drawing a jack, queen, king, or ace =16/52=4/13

option C

3)probability that the sequence of tosses is HHHT =(1/2)*(1/2)*(!/2)*(1/2)=1/16=0.0625

option A

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