It is known that 50% of adult workers have a high school diploma. If a random sample of 8 adult
workers is selected, what is the probability that less than 6 of them have a high school diploma?
(That is, what is P(X < 6) (round to 4 decimal places)

Approximately 8% of all people have blue eyes. A random sample of 20 people is selected, find
μ. Round to one decimal place.

20*0.08
If random variable X has a binomial distribution with n =7 and P(success) = p =0.6, find the
probability that X is at least 6. (That is, find P(X
≥
6) (round to 4 decimal places)

If
random
variable
X
has
a
binomial
distribution
with
n
=
9
and
P
(
success
) =
p
=
0
.
4
,
find
the
standard
deviation
of
X
. (
round
to
4
decimal
places
)

It
was
found
that
60%
of
people
have
a
dog
as
a
pet
.
If
a
random
sample
of
11
people
is
selected
,
what
is
the
variance
of
the
number
of
people
that
have
a
dog
as
a
pet
? (
That
is
,
what
is
Var
(
X
)?) (
round
to
2
decimal
places
)

=11*0.6*0.4