Question

the percentage of people who took less than 40 secs to complete a task give answer in 1 decimal place

Answer 1

Approximately
`63.6`% of people completed the task in less than
`40` seconds based on the histogram.

Here are the steps to estimate the percentage of people who took less than
`40` seconds to complete the task:

1. Identify the Total Number of People:

The total number of people who took the test is
`110`.

2. Determine the Number of People Who Took Less Than
`40` Seconds:

Add the frequencies for the bars representing less than
`40` seconds.

`30 + 25 + 15 = 70`

3. Calculate the Percentage:

`\[ \text{Percentage} = \left( \frac{\text{Number of People Who Took Less Than 40 Seconds}}{\text{Total Number of People}} \right) * 100 \] \[ \text{Percentage} = \left( (70)/(110) \right) * 100 \] \[ \text{Percentage} \approx 0.6364 * 100 \]`

4. Express the Percentage to 1 Decimal Place:

`\[ \text{Percentage} \approx 63.6\% \]`

Therefore, the estimated percentage of people who took less than
`40` seconds to complete the task is
`63.6`%.

Answer 2

63.6%

Explanation:

Total number of people that took the test = 110

People who took less than 40 seconds to complete the task = 30 + 40

= 70

The percentage of the people that took less than 40 seconds to complete the task can be determined as follows:

=
`(number of people who used less than 40 seconds)/(total number of people who took the task)` x 1100%

=
`(70)/(110)` x 100%

= 0.6364 x 100%

= 63.6%

The percentage of the people that took less than 40 seconds to complete the task is 63.6%.