Answer:
z score for officer1 is 1, he will be promoted.
z score for officer2 is 0.33, she will not be promoted.
Step-by-step explanation:
Officer 1 get 74 points. O1=74
Officer 2 get 68 points. O2=68
Mean of the exam is 65 and standart deviation is 9 . M=65 and s=9
1) z-score for O1 can be found using the formula:
=1
2) z-score of O2 is
=0.33
Promotion is gained if an officer (O), scores higher than 80% of the officers taking the exam. This means they need to be at least in the top 20% of the exam. Therefore we look for the corresponding z score for the P(z)=0.2 which is 0.8416. Since z-score of O1 is bigger that 0.8416, he promotes. Officer2 who got 68 from the exam cannot promote since corresponding z-score is less than 0.8416
Step-by-step explanation:
False. the number is the x coordinate
True. the x-axis is horizontal
False. 0,0 is called the origin.
Answer:
A.
B.
C.
F.
Step-by-step explanation:
It might be wrong but im about to finish
Edit: This is incorrect
First, reorder the numbers for each person.
The median is basically the middle number. If there are 2 middle numbers, then take the average of the two of them.
Pedro: 4, 5, 6, 7, 8, 9
The 2 middle numbers are 6 and 7. The average of 6 and 7 is 6.5 .
Median = 6.5
Alex: 3, 5, 5, 5, 9, 9
The 2 middle numbers are 5 and 5; so basically, the average is 5.
Median = 5
Jaime: 3, 4, 6, 8, 8, 9
The 2 middle numbers are 6 and 8 and thus, the average is 7.
Median = 7
So the answer should be Jaime.
9514 1404 393
Answer:
False
Step-by-step explanation:
The given formula is the "explicit" formula for the sequence.
The recursive formula would be ...
a[1] = 160
a[n] = 1/2·a[n-1] . . . . each term expressed in as a function of previous terms
The given statement is false.
