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adelina 88 [10]
4 years ago
6

The histogram shows the number of cell phone calls received by Medera, a middle school student, one Saturday from 10 a.m. to 10

p.m.
A histogram titled Cell Phone Calls has time of day on the x-axis and number of calls on the y-axis. From 10 to 12 pm there were 2 calls; from 12 to 2 pm there were 8 calls; from 2 to 4 pm there were 0 calls; from 4 to 6 pm there were 10 calls; from 6 to 8 pm there were 4 calls; from 8 to 10 pm there were 2 calls.

Which statement most reasonably explains the hours when zero calls were received?
Medera turned the phone off while playing in a soccer game.
Medera’s phone can only receive 22 calls a day.
Medera only receives calls in clusters.
Medera lost her phone for two hours.
Mathematics
1 answer:
FrozenT [24]4 years ago
4 0

Answer:

Its A. Medera turned the phone off while playing in the soccer game

Step-by-step explanation:

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Suppose you roll a die 5 times. What is the probability of getting at least one odd number ​?
Simora [160]

Answer: 1/2 or 50%

Step-by-step explanation:        

A dice has 6 numbers; 1,2,3,4,5,6

3 of which are odd numbers

which means:

p(event)= number of favorable outcomes/ number of possible outcomes

p(odd)=3/6

3/6=1/2 or 50%

3 0
2 years ago
Can you tell me what -15 + 4 equals and the process of how you got that answer
Bogdan [553]

-15 is 15 below o

 you are adding 4 , so you are getting closer to 0

 so you would actually use subtraction, 15-4 = 11

 since 15 is negative, and you are adding a number smaller than 15, the answer would be negative so it would be -11


4 0
3 years ago
A laboratory scale is known to have a standard deviation of Ï = 0.001 gram in repeated weighings. Scale readings in repeated wei
erica [24]

Answer:

the confidence interval for the true weight of the specimen is;

4.1593 ≤ μ ≤ 4.1611

Step-by-step explanation:

We are given;

Standard deviation; σ = 0.001

Sample size; n = 8

Average weight; x¯ = 4.1602

We are given a 99% confidence interval and the z-value at this interval is 2.576

Formula for confidence interval is;

CI = x¯ ± (zσ/√n)

Plugging in the relevant values, we have;

CI = 4.1602 ± (2.576 × 0.001/√8)

CI = 4.1602 ± 0.000911

CI = (4.1602 - 0.000911), (4.1602 + 0.000911)

CI ≈ (4.1593, 4.1611)

Thus, the confidence interval for the true weight will be expressed as;

4.1593 ≤ μ ≤ 4.1611

Where μ represents the true weight

4 0
3 years ago
For the last 4.5 hours, the temperature has decreased at a rate of 2.8 degrees per hour. Which best represents the overall chang
Elden [556K]

Just divide 4.5 by 2.8 and you'll get the rate of decreasing degree per hour.

8 0
3 years ago
Read 2 more answers
Plz help me Quick l need helpppp​
Angelina_Jolie [31]
I’m not really sure but I would have to guess 4.5 because all of the other numbers don’t have decimals
5 0
3 years ago
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