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Fittoniya [83]
3 years ago
8

The monthly cost for cell phones for plan Amazing has a mean of $39.17 with a standard deviation of $13.58, while the monthly co

st for plan Best has a mean cost of $41.16 with a standard deviation of $7.18. A random sample of 37 phones is selected from plan Amazing, and a random sample of 40 phones is selected from plan Best. What is the probability that the mean cost for plan Amazing will be more than the mean cost for plan Best? 0.2134 0.7866 0.9741 0.9942
Mathematics
1 answer:
mario62 [17]3 years ago
4 0

Answer:

0.2134

Step-by-step explanation:

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I need help with this points if right
fomenos

Answer:

A

Step-by-step explanation:

90-49=41

41-3=38

49+(38+3)=90

6 0
3 years ago
Convert the decimals to fractions in the simplest fractions.<br> Show your work<br> 10.6=<br> 5.05=
professor190 [17]

Answer: 53/5, 101/20

Step-by-step explanation:

10.6 is =  106/10. Then divide both numerator and denominator by 2. Then it equals 53/5.

5.05 = 505/100. Then divide both numerator and denominator by 5. This will equal 101/20.

5 0
3 years ago
A large bag of marbles contains red (R) and blue (B) marbles. Marbles are pulled one at a time, recorded, and placed back in the
ehidna [41]
The answer will be A.
6 0
3 years ago
What number is 3.4 more than 7.3?
Westkost [7]

Answer:

10.7

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
C) How long is the potato in the air? *hint set h=0*<br> if h=-2(t-3)2+32
Galina-37 [17]

Answer:

if you meant to put (t-3)^{2}, then the answer is 7

Step-by-step explanation:

h=-2(t-3)^{2}+32

solve for t

0=-2(t-3)^{2}+32

subtract 32 from both sides

-32=-2(t-3)^{2}

divide both sides by -2

16=(t-3)^{2}

find suare root of 16

4= t-3

add 3 to both sides

7 = t

6 0
3 years ago
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