All categories

3 years ago

Time (sec) Frequency

Mathematics

2 answers:

Kazeer [188]3 years ago

5 0

Answer :

The total number of individuals are included in the summary = 55
No, it is impossible to identify the exact values of all of the original service times.

Explanation:

In a frequency table , Class frequency refers to the number of observations in each class .

Further explanation :

We are given table summarizing service times (seconds) of dinners at a fast food restaurant.

Time (sec) Frequency

60 - 119 8

120 - 179 25

180 - 239 14

240 - 299 2

300 - 359 6

Total 55

Here frequency is telling the number of individuals have a particular time period (class) of serving.

Thus , the total number of individuals are included in the summary = Total frequency

Since Total frequency = 8+25+14+2+6

= 55

Thus , the total number of individuals are included in the summary = 55

Since each frequency number is representing number of services done in particulate time interval.

Therefore it is impossible to identify the exact values of all of the original service times.

Learn more:

Frequency Table: brainly.com/question/11367327 , Answered by Frika

Class frequency: brainly.com/question/12719662 , Answered by Absor201

Keywords:

Frequency table , Class frequency

Umnica [9.8K]3 years ago

3 0

Answer:

We are given the below frequency table:

Time (sec) Frequency

60 to 119 8

120 to 179 25

180 to 239 14

240 to 299 2

300 to 359 6

Total 55

Therefore, there are 55 individuals included in the summary.

Is it possible to identify the exact values of all of the original service times?

No, it is possible to identify the exact values of all of the original service times because the data values in each class could take on any value between the class limits,

You might be interested in

James bought Nicole a pair of shoes for $54.99 and a bracelet for $21.99. He used a 15% off coupon and then paid 7.5% sales tax.

mina [271]

Answer:

$70.34

Step-by-step explanation:

The total before the coupon and tax is:

$54.99 + $21.99 = $76.98

Now apply the 15% coupon:

Since the total price is 100% of the price, when you apply a 15% coupon, you pay 100% - 15% = 85% of the price. We need to find 85% of $76.98

85% * $76.98 =

= 0.85 * $76.98

= $65.43

The price after the 15% coupon, but before the tax, is $65.43

Now the total $65.43 is considered 100% of the price. The tax is 7.5%.

100% + 7.5% = 107.5%

Now we find 107.5% of $65.43

107.5% of $65.43 =

= 1.075 * $65.43

= $70.34

Answer: $70.34

6 0

2 years ago

Read 2 more answers

A triangle in Quadrant I is reflected twice, first over the y-axis and then over the x-axis. The new triangle, in Quadrant III,

denpristay [2]

Answer: rotation

Step-by-step explanation:

5 0

3 years ago

Hav sum freh poits <br> Love ur mom

Stella [2.4K]

Answer:

Thank you so much

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers

Suppose the time to complete a 200-meter backstroke swim for female competitive swimmers is normally distributed with a mean μ =

hammer [34]

Answer:

The swimmer must complete the 200-meter backstroke in no more than 130 seconds.

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

$\mu = 141, \sigma = 7$