Answer:
Step-by-step explanation:
height(h) mid value frequency
in cm x f xf
120<t≤124 122 7 854
124<t≤128 126 8 1008
128<t≤132 130 13 1690
132<t≤136 134 9 1206
136<t≤140 138 3 414
total 40 5172
mean height=5172÷40=129.30
mean height=129.30 cm
b.
it is an estimate i have taken only mid value,for example in the interval all the 7 students may be of length greater than 122 and viceverse.
Similarly for other intervals.
Answer:
3/6 = 4/8
Step-by-step explanation:
they're both halves
The five sets of integers that has a mean of -10 will be 10, -15, -2, -12, and -11.
<h3>How to calculate the value?</h3>
It should be noted that mean simply means average. Therefore, the numbers that will give a mean of -10 will be:
-10, -15, -2, -12, and -11.
Therefore, the mean will be:
= ( - 10 + -15 + -2 + -12 + -11) / 5
= -50 / 5
= -10
Learn more about mean on:
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Amount of candy bought by Maggie = 183.517g
Amount of candy bought by her friend = 1893.573g
Clearly seen, that her friend has a heavier bag of candy.