What is the mode of the data set?

61, 92, 61, 89, 92, 61

what is the mean of the data set?

82, 105, 247, 119, 94, 202

at sara's new job she spent $11.52, $6.48, $5.99, $14.00, and $9.50 on lunch the first week.

in the second week, she spent $4 more in total for the 5 lunches than the first week.

what is the increase in the mean for the second week compared to the first?

round the answer to the nearest penny.

a class of 25 students took a spelling test. two students scored 100 on each test, nine students scored 95 on each test, ten students scored 90 on each test, three students scored 80 on each test and one student scored 70.

what is the average score of the spelling test rounded to one decimal place?

1) 61, 92, 61, 89, 92, 61

Mode : The number which appears most often in a set of numbers.

61 occurred thrice

89 occurred once

92 occurred twice

Since 61 occurred most often

So, Mode of the given data is 61.

2)82, 105, 247, 119, 94, 202

Mean =

So, Mean =

Mean =

Thus the mean of the given data is 141.5

3) First week expenditure:  $11.52, $6.48, $5.99, $14.00, and $9.50

Mean =

So, Mean =

Mean =

Now we are given that in the second week, she spent $4 more in total for the 5 lunches than the first week.

So, Mean =

So, Mean =

Mean =

Increase in the mean in the second week = 8.581-7.915 = 0.666

Hence the increase in the mean for the second week compared to the first is 0.666.

step-by-step explanation:

if you want to solve percent error follow these steps.

1. subtract the accepted value from the experimental value.

2. take the absolute value of step 1.

3. divide that answer by the accepted value.

4. multiply that answer by 100 and add the % symbol to express the answer as a percentage.

if you want to solve percent of change just do this.

1. work out the difference (increase) between the two numbers you are comparing.

2. divide the increase by the original number and multiply the answer by 100. if your answer is a negative number then this is a percentage decrease.

hope this : )