Answer:
The standard deviation is used in conjunction with the mean to numerically describe distributions that are bell shaped. The mean measures the center of the distribution, while the standard deviation measures the spread of the distribution.
Step-by-step explanation:
Problems of normally distributed samples can be solved using the z-score formula.
In a set with mean 
and standard deviation 
, the zscore of a measure X is given by
The mean is the average value of the measures while the standard deviation measures how spread the measures are from the mean. So
The standard deviation is used in conjunction with the mean to numerically describe distributions that are bell shaped. The mean measures the center of the distribution, while the standard deviation measures the spread of the distribution.
X=13; do you need the work? Also for future reference symbolab.com is where I get all my answers.
Answer:
Step-by-step explanation:
given that you look over the songs in a jukebox and determine that you like 14 of the 52 songs
Here each song is independent of the other song
i.e. p = Probability that you like any song =
q = Prob you do not like = 1-0.2692 = 0.7308
a) the probability that you like the next four songs that are played
=
b) the probability that you do not like the next four songs that are played
=
Answer:They will need to make 18 lunches
Step-by-step explanation: How I did it was use the website demos scientific calculator and put the question of what is 60% of 30 and it gave the answer!
3-2= -3x-x
1 = -4x
x = -1/4
Yes it is possible
