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3 years ago

What is the mean of the data set?

Mathematics

2 answers:

kati45 [8]3 years ago

7 0

Answer:

The mean of data set = 183

Step-by-step explanation:

Formula:

Mean of a data set is given by,

Mean = (sum of all data set)/(total number of data set)

<u>To find total sum of data set</u>

Here data set is,

125, 141, 213, 155, 281

Sum = (125 + 141 + 213 + 155 + 281) = 915

Total sum = 915 and total number = 5

Mean = (sum of all data set)/(total number of data set)

Mean = 915/5 = 183

Therefore mean of data set = 183

olga nikolaevna [1]3 years ago

3 0

Answer:

183

Step-by-step explanation:

125+141+213+155+281=915

915 divided by 5=183

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Triss [41]

The value of the given expression is $\frac{-13}{20}.$

Solution:

Given expression is $\frac{3}{4} \times3\frac{2}{5}-\frac{5}{5}$ .

Let us first convert mixed fraction into improper fraction.

$3\frac{2}{5}=\frac{(3\times5)+2}{5}=\frac{17}{5}$

Substitute this in the given expression.

$\frac{3}{4} \times3\frac{2}{5}-\frac{5}{5}=\frac{3}{4} \times\frac{7}{15}-\frac{5}{5}$

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To simplify the above expression, 21 and 60 are cancelled by 3.

$=\frac{7}{20}-\frac{1}{1}$

Do cross multiplication to make the denominator same.

$=\frac{7}{20}-\frac{20}{20}$

$=\frac{7-20}{20}$

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