Answer:
( -4 , -4 )
Step-by-step explanation:
The mean is calculated by adding up all of the given numbers and dividing by the number of numbers.
Lets, for ease of understanding, say that the first three number were 64...
Mean=(64+64+64)/3=192/3=64
Now, lets solve for the mean where 'x' is the unknown fourth number and 128 is the mean. (since, the answer said that when the fourth number was added the mean, 64, was doubled '64*2=128')
128=(64+64+64+x)/4
128=(192+x)/4
Multiply both sides by 4
512=192+x
subtract 192 from both sides
320=x
The missing number is 320..
Now lets double check our work.
Mean=(64+64+64+320)/4=512/4=128
Answer=320
(13,infinity] hope this helps
Answer:
The probability of an event will not be less than 0. This is because 0 is impossible (sure that something will not happen). The probability of an event will not be more than 1. This is because 1 is certain that something will happen.
Step-by-step explanation:
Answer: $12.54
Step-by-step explanation:
7 times $4.32 = $30.24
14 times $1.23 = $17.22
add both sums which = $47.46
now subtract $60.00 by $47.46
now equals $12.54 HOPE THIS HELPED!!
