Answer:
We took $ 24 to the movies.
Step-by-step explanation:
Let total money be
On movies = Half of the money =
On popcorn =
on candy = $2
On soda = $3
total money spent = +
+ 2+3+1
x = +
+ 2+3+1
x- -
= 6
-
-
=6
What z score in a normal distribution has 33% of all score above it?
Answer: A z score which has 33% of all scores above it, will have 67% of all scores below it.
To find the required z score, we need to find the z value corresponding to probability 0.67.
Using the standard normal table, we have:
Therefore, the z score = 0.44 has 33% of all score above it.
Answer:
Error: not
Solution:x=0 and 3
Step-by-step explanation:
We have to find the error and correct answer
Given:
Using the formula
Therefore, x=0 and x=3
But last step in the given solution
It is wrong this property is used when
then
Hence, the student wrote instead of
and solution is given by
x=0 and x=3