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saveliy_v [14]
3 years ago
12

1.6.15

Mathematics
2 answers:
pishuonlain [190]3 years ago
3 0
The maximum messages are 224
postnew [5]3 years ago
3 0

224 is maximum number of text messages

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Which of the following rational numbers is equal to 3/5?
Vedmedyk [2.9K]
3/5 = 60%
20 ÷ 5 = 4
3 x 4 = 12

Answer is A) 12/20
4 0
3 years ago
Read 2 more answers
An SRS of 25 recent birth records at the local hospital was selected. In the sample, the average birth weight was x = 119.6 ounc
Evgen [1.6K]

Answer:

From the central limit theorem we know that the distribution for the sample mean \bar X is given by:

\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})

\mu_{\bar X}= \mu = 119.6

And now for the deviation we have this:

SE_{\bar X} = \frac{6.5}{\sqrt{25}}=1.3

So then the correct answer for this caee would be:

c. 1.30 ounces.

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".  

The central limit theorem states that "if we have a population with mean μ and standard deviation σ and take sufficiently large random samples from the population with replacement, then the distribution of the sample means will be approximately normally distributed. This will hold true regardless of whether the source population is normal or skewed, provided the sample size is sufficiently large".

Solution to the problem

From the central limit theorem we know that the distribution for the sample mean \bar X is given by:

\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})

\mu_{\bar X}= \mu = 119.6

And now for the deviation we have this:

SE_{\bar X} = \frac{6.5}{\sqrt{25}}=1.3

So then the correct answer for this caee would be:

c. 1.30 ounces.

6 0
3 years ago
What is the precent of error
Sonja [21]
I think its 850 ÷ 730
6 0
3 years ago
the mean mark got by 6 pupil's in a cat is 75.5 of them scored 83 73 71 67 and 69. what was the score of the sixth pupil?.what w
vichka [17]

Answer: score if the sixth pupil is 90

Step-by-step explanation:

Mean mark-75.5

6pupil

83+73+71+67+69+x= 75.5

363+x=75.5×6

×=453-363

×=90

8 0
3 years ago
Ralph began work at 7 p.m .By 10 p.m ralph packed 18 boxes .At the same Ralph began work at 7 p.m .By 10 p.m ralph packed 18 box
Montano1993 [528]
10-7=3 so his rate is 18 boxes every 3 hours 18/3 is 6 boxes per hour, 12-7=5 hours 5 x 6 = 30 boxes by 12pm
4 0
3 years ago
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