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3 years ago

Can someone answer this question please answer it correctly if it’s corect I will mark you brainliest

Mathematics

2 answers:

Fed [463]3 years ago

7 0

Answer:

Step-by-step explanation:

The data points need to go from 41 to 50

This eliminates choice D

The median is at 44 ( the line in the middle of the box)

There are 10 data points so the middle data point is the between the 5th and 6th

(43+45)/2 = 44

(43+47)/2 = 45 We can eliminate Choice C

The right line is the upper quartile. It is the middle of the upper 5 data points

If should be at 48

The middle of the upper 5 data points is the 8th point

The 8th point in 8 is 49

inB it is 48

ruslelena [56]3 years ago

5 0

Answer: The answer should be A

Explanation: Look at the 2 bolded points and count from there. Start from the first bolded point.

I hope I helped! ***** Please leave a THANKS and a RATE!

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A company has developed a training procedure to improve scores on the SAT. Following the training, 100 high school students take

Pani-rosa [81]

Answer:

The calculated t-test = 1.717 < 1.6604 at 0.05 level of significance

Null hypothesis is accepted at 0.05 level of significance

A company has developed a training procedure is significantly improve scores

Step-by-step explanation:

Step(i):-

Given sample mean (x⁻ ) = 517

sample standard deviation (s) =90

Mean of the Population (μ) =500

Null Hypothesis :- H₀ : (μ) =500

Alternative Hypothesis : H₁ : μ ≠ 500

Step(ii):-

Test statistic

$t = \frac{x^{-} -mean}{\frac{s}{\sqrt{n} } }$

$t = \frac{517 -500}{\frac{90}{\sqrt{100} } }$

t = 1.717

Level of significance

∝ = 0.05

t₀.₀₅ = 1.6604

The calculated t-test = 1.717 < 1.6604 at 0.05 level of significance

Conclusion:-

Null hypothesis is accepted at 0.05 level of significance

A company has developed a training procedure is significantly improve scores

3 0

3 years ago

Solve: 3x+5=14 Find the value of x

Levart [38]

$3x+5=14 \\ 3x=14-5 \\ 3x=9 / :3\\ \boxed{x=3} \\ \\\\\huge\text{The answer is x=3}$

7 0

3 years ago

Read 2 more answers

WILL GIVE BRAINLIST SOON AS I CAN can someone please help me out here

BabaBlast [244]

Answer:

x = 6

Step-by-step explanation:

Since the 2 base angles of the triangle are congruent, both 45°, then

The figure is a right isosceles triangle, thus the 2 legs are congruent, that is

x = 6

8 0

3 years ago

Solve 5x^2 = -30x - 65

dalvyx [7]

Answer:

+65=-30x-5x^2

+65=-35x

=-1.9

3 0

3 years ago

Solve the following equation for y

svetoff [14.1K]

Answer:

-2y=10-5x

Step-by-step explanation:

5x-2y=10

you want to get the y by itself

so you would subtract the 5x from both sides

-2y=10-5x

8 0

2 years ago