A class collected the daily temperatures of a city for a month (30 days), grouped as 25-28, 28-31, 31-34, 34-37. Frequencies are 5, 11, 9, x and they add to 30. Find x, then state which class is the modal (most frequent) class.

Question

Accepted Answer

x=5; modal class is 28-31. 5 + 11 + 9 + x = 30 gives x = 5. The largest frequency is 11 (class 28-31), so it is the modal class.

A class collected the daily temperatures of a city for a month (30 days), grouped as 25-28, 28-31, 31-34, 34-37.
Frequencies are 5, 11, 9, $x$ and they add to 30. Find $x$ , then state which class is the modal (most frequent) class.

Step-by-Step Solution

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More Class 8 Bar Graphs and Histograms practice

A class collected the daily temperatures of a city for a month (30 days), grouped as 25-28, 28-31, 31-34, 34-37.Frequencies are 5, 11, 9, x and they add to 30. Find x, then state which class is the modal (most frequent) class.

Step-by-Step Solution

Master this chapter in 30 minutes a day.

More Class 8 Bar Graphs and Histograms practice

A class collected the daily temperatures of a city for a month (30 days), grouped as 25-28, 28-31, 31-34, 34-37.
Frequencies are 5, 11, 9, $x$ and they add to 30. Find $x$ , then state which class is the modal (most frequent) class.