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Find the mean , median and the mode of these scores 69,77,77,77,84, 85,85,87,92,98​

Sagot :

Munchieskookissidn

Answer:

Mean = 83.1

Median = 84.5

Mode = 77, 85 (Bimodal or Multimodal)

Step-by-step explanation:

What is Mean?

- The mean is the average of several numbers of data. it is obtained by adding all the values and divided by the frequency of a set of data.

Mean = Sum of all data / Number of data

[add all the scores]

69+77+77+77+84+85+85+87+92+98 = 831

[count the number of frequency of a set of data]

there are 10 scores in total.

[then, divide.]

831 ÷ 10 = 83.1 or 83

What is Median?

- Median is the “middle” or mid value of a data set. To find the median, you have to first order the numbers - from smallest to largest or vice versa, and then find the middle number.

N = 10 – even number

69, 77, 77, 77, 84, 85, 85, 87, 92, 98

[add 84 & 85]

84+85 = 169

[then, divide into 2]

169/2 = 84.5

What is Mode?

- The most frequently occuring observation in a data set is called Mode (also known as modal value). This is a measure of the tendency of the data values.

Types of Mode:

  • Unimodal - one mode
  • Bimodal - two modes
  • Trimodal - three modes
  • Multimodal - more than one mode

69, 77, 77, 77, 84, 85, 85, 87, 92, 98

Mode = 77, 85 – Bimodal or Multimodal

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