Answer:
Mean: 76.42
Population: 7
Mean absolute deviation: 13.06
Step-by-step explanation:
Answer:
Step-by-step explanation:
a is the height
b is the base
c is the hypotenuse
Answer:
8.75 cups
Step-by-step explanation:
3.5:1 (the ratio of batches to 1 batch)
x:2.5 (the ratio of cups of sugar used to the amount used for only 1 batch)
3.5/1=x/2.5 (proportion)
x= 8.75
The histogram is especially useful in comparing mean and median values of a variable. We have that 5.5+6+7+10+7.5+8+9.5+9+8.5+8+7+7.5+6+6.5+5.5=111.5 Since there are 15 values, their mean is 111.5/15=7.43 which is very close to the mean. We also have that 7 onservations are lower than 7.4 while 8 are bigger than 7.4; hence, the diagram is rather balanced and not left-skewed. We cannot tell immediately which one is larger since the values are too close. Any such random process can usually be approximated to a greater or smaller degree by a normal curve; the more points, the better. The histogram shows this (it is kind of a discrete normal curve); all points except 4 will be in this interval of bars.
