All categories

3 years ago

The mean of 10,12,16,20,p,26 is 17.Find the value of p.

2 answers:

7 0

Answer: " p = 18 " .
__________________________________________________
Explanation:
__________________________________________________
The [arithmetic] mean =

{the sum of all the values in the data set}
divided by {the number of values in the number set} ;
__________________________________________________
→ 17 = (10 + 12 + 16 + 20 + 26 + p) / 6 ;

__________________________________________________
→ (10 + 12 + 16 + 20 + 26 + p) = 17 * 6 ;

→ (p + 84) = 102

Subtract "84" from each side of the equation;
to isolate "p" on one side of the equation; & to solve for "p" ;

→ p + 84 – 84 = 102 – 84 ;

→ p = 18 .
_________________________________________________

The answer is: " p = 18 " .
_________________________________________________

Paha777 [63]3 years ago

3 0

There are 6 numbers total

17 * 6 = 102

10 + 12 + 16 + 20 + 26 = 84

p = 102-84 = 18

p = 18

You might be interested in

The perimeter of a rectangular garden is 860 ft. the two short sides of the garden are each 30 ft long. you are asked to find th

garik1379 [7]

2(30)+2x=860

This is because the 4 sides of the rectangle add up to the perimeter.
The unknown side is x, and there are two of those, and there are also two sides of 30.
They all add up to the perimeter.

So:
2(30) + 2x = 860

4 0

2 years ago

The donut shop sells mini an extra large sizes for each flavor of donut they make. Today they are making powdered sugar glaze ch

FinnZ [79.3K]

5 I think because there is
Powdered sugar
Glaze
Chocolate
Coconut
Jelly

4 0

2 years ago

SAT reading and writing section scores of a random sample of twenty 11th-grade students in a certain high school are given below

kvasek [131]

Answer:

The value of test statistics is 25.

Step-by-step explanation:

We are given below the SAT reading and writing section scores of a random sample of twenty 11th-grade students in a certain high school;

380, 520, 480, 510, 560, 630, 670, 490, 500, 550, 400, 350, 440, 490, 620, 660, 700, 730, 740, 560

Let $\sigma$ = population standard of the reading and writing section SAT score of the students in this school

So, Null Hypothesis, $H_0$ : $\sigma \leq$ 100 {means that the reading and writing section SAT score of the students in this school is lesser than or equal to 100}

Alternate Hypothesis, $H_A$ : $\sigma$ > 100 {means that the reading and writing section SAT score of the students in this school is higher than 100}

The test statistics that would be used here is One-sample Chi-square test statistics;

T.S. = $\frac{(n-1)s^{2} }{\sigma^{2} }$ ~ $\chi^{2} __n_-_1$

where, $s^{2}$ = sample variance = $\frac{\sum (X-\bar X)^{2} }{n-1}$ = 13135.8

n = sample of 11th-grade students = 20

So, the test statistics = $\frac{(20-1)\times 13135.8^{2} }{100^{2} }$

= 24.96 ≈ 25

Hence, the value of test statistics is 25.

5 0

3 years ago

573÷3 i feel like i did something wrong with the 27

Tom [10]

You did everything right. The correct answer is 191

Hope this helps

7 0

2 years ago

Read 2 more answers

The average cost of tuition and room and board at a small private liberal arts college is reported to be $8,500 per term, but a

Tom [10]

Answer:

H₀: µ ≤ $8,500; H₁: µ > $8,500

z= +1.645

Step-by-step explanation:

From the given problem As average cost of tuition and room and board at a small private liberal is less than the financial administrator As hypothesis is true.

As standard deviation is $ 1,200

α = 0.05

H₀: µ ≤ $8,500

if the null hypothesis is true then value for critical z is +1.645.

6 0

2 years ago