Answer:
Total of the frequency = The last values of the cumulative frequency (c.f) = 100
Step-by-step explanation:
From the frequency distribution table given in the question, the cumulative frequency (c.f) can be computed by adding each frequency to the sum or total of the preceding frequencies. This makes the last value of the cumulative frequency (c.f) to be equal to the total of the frequency.
Based on this explanation, we have:
<u>mass </u><em><u>m</u></em><u> (kg) </u> <u> frequency </u> <u> mass </u><em><u>m</u></em><u> (kg) </u> <u> c.f </u>
0 < <em>m</em> ≤ 0.1 2 <em> m</em> ≤ 0.1 2
0.1 <<em> m</em> ≤ 0.2 7 <em>m</em> ≤ 0.2 9
0.2 < <em>m</em> ≤ 0.5 32 <em>m</em> ≤ 0.5 41
0.5 < <em>m</em> ≤ 0.8 46 <em>m</em> ≤ 0.8 87
0.8 <<em> m</em> ≤ 1 13 <em>m</em> ≤ 1 100
From the above, we can observe that:
Total of the frequency = 2 + 7 + 32 + 46 + 13 = 100
The last values of the cumulative frequency (c.f) = 100
Therefore, we have:
Total of the frequency = The last values of the cumulative frequency (c.f) = 100
The unit rate of the equation is 3x+7
Answer:
the last one
Step-by-step explanation:
there is a total of 80 items
34+24+10+11=80
= approx. 12.5% so a is wrong
= approx. 13.75% so b is wrong
there were 24 brownies sold and so c is incorrect
there were 10 cookies sold which does equal so the last one is right
Answer:
The common difference is 1.5
Use the explicit formula to find a1.
a1 = 1.2
What is the explicit formula for the arithmetic sequence?
= 1.2 + (n - 1)1.5
Step-by-step explanation: