Complete the chart to find the mean, variance and standard deviation. Remember to use commas and round numbers to the nearest tenth.
X
х
X-X
(x-X)?
1.345
= -82.5 =
The mean is
2.340
= -87.5
v
The variance is
3. 400
= -27.5
The standard deviation is
4.625
197.5 =
n =
ΣΧ=
(X-X)2 = 54,225.0

On average, how many more hits will he get when he bats 100 times at home during the day as opposed to 100 times away at night?

It is saturday morning and jeremy has discovered he has a leak coming from the water heater in his attic. since plumbers charge extra to come out on the weekends, jeremy is planning to use buckets to catch the dripping water. he places a bucket under the drip and steps outside to walk the dog. in half an hour the bucket is 1/5 of the way full. what is the rate at which the water is leaking per hour?

Graph the line that represents a proportional relationship between d and t with the property that an increase of 33 units in t corresponds to an increase of 44 units in d. what is the unit rate of change of dd with respect to t? (that is, a change of 11 unit in t will correspond to a change of how many units in d? )