Answer:
Geometric Mean = 9.17
Step-by-step explanation:
Here,
a = 7
b = 12
Geometric mean = root(ab)
= root( 7 x 12)
= root(84)
= 9.17
Answer:
1.25 hours or 1 hour and 15 minutes
Step-by-step explanation:
12:45 - 12:30 = :15
15 minutes equates to 1/5 of the rides
So, we multiply 15 by 5 to find the total time taken to ride all the rides.
15 x 5 = 75
75/60 = 1.25
It would take him 1.25 hours to ride all the rides at the carnival or 1 hour and 15 minutes.
To find out the amount Jenna earns, you need to multiply how much she earns per hour by the amount of hours she works for.
If she earns $8.75 for 1 hour, and works for 20 1/5 hours, she'll earn:
8.75 x 20 1/5 = 176.75
Jenna earns $176.75 before tax.
Answer:
24 because you get more pencils to use in case one breaks.
Answer:
Step-by-step explanation:
a) Odd numbers if n then even numbers also n
Total prob = 1 gives 3c=1
c=1/3
b) X=1, if even and
0, if odd
Y =1, if x >3 and
=0 otherwise
xy can take values as 0 or 1
xy =1 if x even and y is greater than 3, or favorable outcomes are
4, 6.
xy= 1 if die shows 4 or 6
=0 if otherwise
Prob (xy) = 1/3, for xy =1 and
= 2/3 for xy =0
This is binomial since each trial is independent.
If 12 tosses are made then if we have binomial proba
with n =12 and p = 1/3 for success