1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
sasho [114]
3 years ago
15

Mrs. Hall records the height of 50 students in a spreadsheet the mean height is 68 inches after looking at the data again she re

alize that two of the 50 observations were outliers that must have been typos 82 and 86 inches she deleted these two observations what is the new mean rounded to the nearest hundredth
Mathematics
2 answers:
Anastasy [175]3 years ago
6 0
The answer is 67.33. Multiply 68 by 50, subtract 82 and 86 from that, then divide by 48
Andru [333]3 years ago
6 0

Answer:

The new mean rounded to the nearest hundredth is:

                            67.33

Step-by-step explanation:

The mean height of 50 students is: 68 inches.

Let a_1,a_2,.....,a_{50} be the height of 50 students.

Let us suppose that:

a_{49}=82\ inches\\\\and\ a_{50}=86\ inches

Hence, we have:

\dfrac{a_1+a_2+.....+a_{49}+a_{50}}{50}=68\\\\\\i.e.\\\\\\a_1+a_2+a_{49}+a_{50}=68\times 50\\\\\\a_1+a_2+.....+82+86=3400\\\\\\a_1+a_2+...+a_{48}=3400-168\\\\\\a_1+a_2+....+a_{48}=3232\\\\\\Hence\ mean\ of\ 48\ students\ is:\\\\\\\dfrac{a_1+a_2+a_3+....a_{48}}{48}=\dfrac{3232}{48}\\\\\\\dfrac{a_1+a_2+a_3+....a_{48}}{48}=67.33

Hence, after deleting the outlier the mean of the remaining students is:

                                        67.33

You might be interested in
Help pls I give a really good rating.
GalinKa [24]

Answer:

Range is 6 and mode is 2

Step-by-step explanation:

Range is the greatest number of the set (7) subtracted by the smallest number of the set(1).

Mode is the most repeated number of the set(2).

<em>Hope this was helpful:)</em>

7 0
3 years ago
The set of all numbers less than or equal to -1
kolbaska11 [484]

Answer:

-10,-100,-8,-7,-2,-4,-5,-20,-6,-3,-7

3 0
3 years ago
How can 1 1/45 turn into a decimal?
Brums [2.3K]
The answer to the question is 0.44
5 0
3 years ago
Read 2 more answers
ms hernandez has 17 tomato plants that she wants to plant in rows. she will put 2 plants in some rows and 1 plant in the others.
dexar [7]
If we go for the ratio of (2 in row : 1 in row) 8:1 7:3 6:5 5:7 4:9 3:11 2:13 1:15 0:17 Therefore there are 9 possibilities
7 0
3 years ago
YA'LL LOOK
Brut [27]

Answer:

Square root of 81 is 9

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • Find the value of x in the isosceles triangle shown
    15·1 answer
  • The ratio of blue shirts to
    8·2 answers
  • Consider this system of equations, where function fis quadratic and function g is linear:
    8·1 answer
  • What are the next two numbers? 0.3 , 0.7 , 1.1 , 1.5 ,
    5·2 answers
  • What's 5/3x(-6/7) In simplest terms??
    13·1 answer
  • the cost of a school banquet is $95 plus $15 for each person attending. Write an equation that gives total cost as a function of
    12·2 answers
  • How do I answer this?​
    15·1 answer
  • Under her cell phone plan, Lily pays a flat cost of $55.50 per month and $4 per gigabyte. She
    14·1 answer
  • Last year, Adele went bowling several times and earned an average score of 95 points.
    8·2 answers
  • What can I do to get my experimental probability closer to the theoretical probability?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!