Question in the attachment!no bitly links pls

Mathematics

1 answer:

Sav [38]3 years ago

4 0

y=3/2x+3 that is the answer

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We have the survey data on the body mass index ( BMI) of 664 young women. The mean BMI in the sample was . We treated these data

dmitriy555 [2]

Step-by-step explanation:

Margin of error = critical value × standard error

The standard error is:

s = σ / √n

s = 7.4 / √664

s = 0.287

The population is normally distributed, so the critical value can be found from a z-score table.

For 90% confidence, z = 1.645.

For 95% confidence, z = 1.960.

For 99% confidence, z = 2.576.

The margins of error are:

90%: 1.645 × 0.287 = 0.4724

95%: 1.960 × 0.287 = 0.5629

99%: 2.576 × 0.287 = 0.7398

The mean is 26.6, so the confidence intervals are:

90%: (26.6 − 0.47, 26.6 + 0.47) = (26.13, 27.07)

95%: (26.6 − 0.56, 26.6 + 0.56) = (26.04, 27.16)

99%: (26.6 − 0.74, 26.6 + 0.74) = (25.86, 27.34)

4 0

4 years ago

Need help with this problem

icang [17]

Okay we'll start easy
46*93
We will take 6*3 which is 18.
40*3 which is 120
6*90 which is 540
40*90 which is 3600
Now add up those
18+120+540+3600 which is 4278

So the missing numbers.

3._00 is going to be 3600
5_0 is going to be 540
_20 is going to be 120
1_ is going to be 18
4._78 is going to be 4.278
Hope this helped. ^~^

6 0

4 years ago

A comet travels at an average speed of 273,000 km/h.

vaieri [72.5K]

Answer: 52,416,000 km

Step-by-step explanation:

If a comet travels 273,000 km/hr

1) Multiply 273,000 km by 24 hours to find how far the comet travels in one day

2) multiply the answer from 1 by 8 to determine how far it travels in 8 days

1) $\frac{273,000 km}{hr}$ * $\frac{24 hr}{1 day}$ = $\frac{6,552,000km}{day}$ (hours cancel out)