All categories

3 years ago

Please help me i rly need this

Mathematics

1 answer:

zvonat [6]3 years ago

8 0

The answer is B because the first number in those points don’t repeat but all the other ones have the first number repeating

You might be interested in

A sample of 15 commuters in Chicago showed the average of the commuting times was 33.2 minutes. If s = 8.3 minutes, find the 95%

OleMash [197]

Answer:

The 95% confidence interval of the true mean.

(29.4261 ,36.9739)

Step-by-step explanation:

Step :- (i)

Given sample size 'n' =15

sample of the mean x⁻ = 33.2

The standard deviation of the sample 'S' = 8.3

95% of confidence intervals

$(x^{-} - t_{\alpha } \frac{S}{\sqrt{n} } ,x^{-} + t_{\alpha }\frac{S}{\sqrt{n} } )$

Step:-(ii)

The degrees of freedom γ=n-1 = 15-1=14

The tabulated value t = 1.761 at 0.05 level of significance.

now substitute all possible values, we get

$(33.2 - 1.761\frac{8.3}{\sqrt{15} } ,33.2+ 1.761\frac{8}{\sqrt{15} } )$

After calculation , we get

(33.2-3.7739 , 33.2+3.7739

(29.4261 ,36.9739)

Conclusion:-

the 95% confidence interval of the true mean.

(29.4261 ,36.9739)

8 0

3 years ago

1.The triangle ABC has the vertices A(-9, -3) B(1. -3), C(-9, 6)

Nina [5.8K]

Answer:

1. A

2. D

3. D

4. C

Hope this helps! :)

3 0

3 years ago

Angle K measures 67º and angle L measures 119°.

DaniilM [7]

Answer:

C. m Angle M = 113o and m Angle N = 61o

Step-by-step explanation:

It's the only answer that makes all the angles added together equal 360 degrees.

67 + 119 + 113 + 61 = 360

5 0

3 years ago

Read 2 more answers

70 × 6000 associative properties

Hatshy [7]

You can do
70 x 6000
and
6000 x 70
=420000

8 0

3 years ago

Read 2 more answers

Kadeem earns a salary of $1,800 per month plus a 10% commission on his sales. In order to save money for the down payment on a h

docker41 [41]

I'm guessing 99.65
1800+10%-20%-25%=99.65
but it probably wrong

5 0

3 years ago

Read 2 more answers