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
olchik [2.2K]
3 years ago
14

Find the mean ,median and mode of the weights of people shown

Mathematics
1 answer:
Alexandra [31]3 years ago
4 0

Answer:

(a)\ Mean = 80kg

(b)\ Median = 76kg

(c)\ Mode = 61kg

Step-by-step explanation:

Given

Data:105kg,  53kg  ,76kg  ,91kg  ,120kg  ,61kg  ,55kg  ,98kg  ,61kg

n = 9

Solving (a): The mean

This is calculated using:

\bar x = \frac{\sum x}{n}

\bar x = \frac{105kg+53kg +76kg +91kg +120kg +61kg +55kg +98kg +61kg}{9}

\bar x = \frac{720kg}{9}

\bar x = 80kg

Hence:

Mean = 80kg

Solving (b): The median

Data:105kg,  53kg  ,76kg  ,91kg  ,120kg  ,61kg  ,55kg  ,98kg  ,61kg

Arrange in ascending order

Data: 53kg ,55kg, 61kg ,61kg,76kg  ,91kg   ,98kg , 105kg,120kg

n = 9

So, the position of the median element is:

Median = \frac{n+1}{2}th

Median = \frac{9+1}{2}th

Median = \frac{10}{2}th

Median = 5th

The 5th element is 76kg

Hence:

Median = 76kg

Solving (c): The mode

In the given data

Mode = 61kg

Because it has a frequency of 2 (the highest), others have 1

You might be interested in
Brandon had already read 6 books this year before joining a book club, and he plans to read 1 book every month now that he has j
jok3333 [9.3K]
15 - 6 = 9
So 9 months
6 0
3 years ago
I need help answering the question
Troyanec [42]

x = 15 + 4y that is what I got out of it

3 0
3 years ago
Looking for an algebraic equAtion answer.. <br><br> 2x + y = 1<br> 4x - 2y = 6<br><br> Can you help?
Sergio [31]
X=1and y=−1 Your welcome
4 0
3 years ago
What is the domain of the function f(x) = x^2 + 5?
Sophie [7]

The domain is R so the first one is correct.

4 0
3 years ago
Is the function even odd or neither?
Mandarinka [93]

The answer is the first option: Even.

The explanation for this exercise is shown below:

1. By definition, if f(x)=f(-x) the fucntion is even.

2. When the graph is symmetric with respect to the y-axis, it is an even function.

3. As you you can see in the graph attached in the problem, the graph is symmetric about the y-axis. Therefore, you can conclude it is an even function.

5 0
3 years ago
Other questions:
  • The closing price of a share of stock in Company XYZ is $17.29 on Thursday. If the change from the closing price on Wednesday is
    11·2 answers
  • Dean and Lisa both found deals online for movie tickets. Dean bought 4 movie tickets for $39.80. Lisa bought 6 movie tickets for
    13·2 answers
  • What information do you need to solve the problem?
    12·1 answer
  • Need help on number 5 and 8 find The length of The Missing side
    10·1 answer
  • Let X = the time between two successive arrivals at the drive-up window of a local bank. If X has an exponential distribution wi
    10·1 answer
  • 4 - 7/x = 5 + 6/x <br>help me guys <br><br>​
    7·1 answer
  • A farm has chickens and cows. All the cows have 4 legs and all the chicken have 2 legs. All together, there are 82 cow and chick
    9·1 answer
  • Seven less than three times her number is between two and eleven(inclusive)
    13·1 answer
  • Hello if you're able to answer this question help me and provide work as well, Thank you.
    11·1 answer
  • Calculate the volume of a cylinder with height 14cm and diameter 10cm. Give your answer rounded to 3 SF.
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!