All categories

3 years ago

The following numerically ordered sequence of numbers has a mean

Mathematics

2 answers:

Vladimir79 [104]3 years ago

7 0

Median = middle number

Total ten numbers so
median =   (17 + b)/2
given median = 18
so
(17 + b)/ 2 = 18
17+b = 36
b = 36 - 17
b = 19

Now you have the data set
7, a , 12, 15 , 17, 19, 20, 22, 24 , 25

Mean =  (7 + a + 12+ 15 +17 + 19 + 20 + 22 +24  +25)/ 10
Given mean = 17

so
17 = (7 + a + 12+ 15 +17 + 19 + 20 + 22 +24  +25)/ 10
17 = (a + 161) / 10
a + 161 = 170
a = 170 - 161
a = 9

answer
a = 9
b = 19

ser-zykov [4K]3 years ago

6 0

Answer:

A=9

B=19 . hope it helps give me a like plz

Step-by-step explanation:

You might be interested in

Kelly runs a bakery that sells Chocolate Blizzards and Mint Breezes. The bakery must make at least 25 dozen and at most 45 dozen

drek231 [11]

Yeah Thanks I love to see that and the answer A

3 0

3 years ago

True or false? The illustration below is an example of a regular tessellation.

ki77a [65]

Answer: Is True

Step-by-step explanation:

these question is true

4 0

3 years ago

Read 2 more answers

What is the best measure of center for this data set?

jenyasd209 [6]

I believe the answer to your question is b.

3 0

3 years ago

write 700/200 as a terminating decimal. then describe two methods for converting a mixed number to a decimal

zhuklara [117]

$\frac{700}{200}=\frac{7}{2}\\\\\#1\\\frac{7}{2}=3\frac{1}{2}=3\frac{5}{10}=3.5\\\\\#2\\\frac{7}{2}=\frac{6+1}{2}=\frac{6}{2}+\frac{1}{2}=3+\frac{1}{2}=3+0.5=3.5\\\\\underline{0.5}\\1:2\\\underline{0}\\10\\\underline{10}\\R=0$

5 0

3 years ago

Determine the perimeter of this shape.

Sindrei [870]

Answer: perimeter = 70.54 cm

Step-by-step explanation:

Perimeter of a shape is the distance around it.

Perimeter of the arc of the bigger semicircle is

π × r

= 3.14 × 7 = 21.98 cm

Perimeter of the arc of the smaller semicircle(handle) is

π × r

= 3.14 × 3 = 9.42 cm

Perimeter of the arc of the smallest semicircle(inner part of the handle) is

π × r

= 3.14 × 1 = 3.14 cm

Therefore, the perimeter of the shape would be

21.98 + 9.42 + 3.14 + 7 + 7 + 10 + 10 + 2 = 70.54 cm

5 0

3 years ago