two card are drawn simultaneously from card pack of 52 ; find
mean and variance of...
two card are drawn simultaneously from card pack of 52 ; find
mean and variance of the number of kings . according to BINOMIAL
DISTRIBUTION .
1) with replacement
2)without replacement
Solutions
Expert Solution
Answer to the
question)
.
The calculation of mean and variance is as shown below:
A card is drawn at random from a deck of 52 cards. Find the
probability that the card is a seven or a spade.
A bag contains 7 green marbles, 5 blue marbles, and 3 yellow
marbles. If a marble is randomly picked from the bag, find the
probability that it is not blue.
Ten balls labeled with the numbers 1, 2, ..., 10 are in a bin.
What is the probability that the numbers 8, 7, and 2 are...
A card is drawn from a standard deck of 52 cards. Find the
probability that the card is a
-
not a face card
-
diamond or Jack
-
face card and spade
-
face card or a club
a.
None of these
b.
3/52
c.
13/52
d.
40/52
e.
16/52
f.
22/52
Two cards are drawn at random from a standard 52-card deck
without replacement. Find the probability that the second card
drawn is a spade, given that the first card drawn was not a
spade.
1) A card is drawn randomly from a standard deck of 52 cards.
Find the probability of the given event.
a red 9
2) Assume that all elementary events in the same sample space
are equally likely.
A pair of fair dice are tossed. What is the probability of
obtaining a sum of 11? 10? 7?
probability of obtaining a
sum of 11
probability of obtaining a
sum of 10
probability of obtaining a
sum of 7
One card is drawn from an ordinary deck of 52 cards. Find the
probabilities of drawing the following cards.
a. An 8 or 2
b. A black card a 9
c. A 2 or a black 7
d. A heart or a black card
e. A face card or a diamond
a. What is the probability that the card is either an 8 or a 2
?
(Simplify your answer. Type an integer or a fraction.)
1) A single card is drawn from a standard 52 card deck.
Calculate the probability that a black card or an ace is drawn.
(show answer as a reduced fraction #/#)
2)A professor knows from past experience that in a class of 36
students the time for students to complete an exam has an N(50,10)
distribution. Suppose that he wants to allow sufficient time so
that 98% of the students will complete the exam in the allotted
time. How much...