Answer:
12rf
Step-by-step explanation:
4 times 3 is 12 and r times f just becomes rf so you are correct.
The product of the frequency and PlayCount gives the number of songs
played from the information in the histogram.
Correct responses (rounded to the nearest whole integer)
1. 2%
2. 27 PlayCount per song
3. 68%
<h3>How does one analyze an histogram?</h3>
1. The given data from the histogram is presented in a tabular form as follows;
![\begin{tabular}{|c|c|c|c|c|c|c|c|c|c|c|c|c|c|c|c|}f&899&224&126&96&71&52&39&41&44&23&14&12&3&4&3\\x&10&20&30&40&50&60&70&80&90&100&110&120&130&140&150\end{array}\right]](https://tex.z-dn.net/?f=%5Cbegin%7Btabular%7D%7B%7Cc%7Cc%7Cc%7Cc%7Cc%7Cc%7Cc%7Cc%7Cc%7Cc%7Cc%7Cc%7Cc%7Cc%7Cc%7Cc%7C%7Df%26899%26224%26126%2696%2671%2652%2639%2641%2644%2623%2614%2612%263%264%263%5C%5Cx%2610%2620%2630%2640%2650%2660%2670%2680%2690%26100%26110%26120%26130%26140%26150%5Cend%7Barray%7D%5Cright%5D)
The percentages of song that where played over 100 times is given as follows;
∑f = 899+224+126+96+71+52+39+41+44+23+14+12+3+4+3 = 1651
Number of songs played over 100 times = 14 + 12 + 3 + 4 + 3 = 36
2. Mean of a frequency distribution is given as follows;

Where;
x = The PlayCount
From MS Excel, we have;
∑f·x = 44410
Which gives;
3. Number of songs played less than 20 times = 899 + 224 = 1,123
Learn more about percentages and histograms here:
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brainly.com/question/1413492
Answer:
It would be 3.5
Step-by-step explanation:
1+1+2+6+4+3+2
so the mean is 3.5
The answer would be multiplicative by -2 because every x value can be multiplied by -2 to get the y value