1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Alona [7]
2 years ago
8

Mr. Gray’s quiz was normally distributed with a mean of 25 and a standard deviation of 10 find z- scores for each of the followi

ng.
(a) 40 (b) 27 (c) 6
Mathematics
1 answer:
Eduardwww [97]2 years ago
8 0
Hello!

Z= x-u/sd

(a) x = 40
z = 40-25 / 10 = -15/10 = -1.5

(b) x = 27
z = 27-25 / 10 = 2/10 = 0.2

(c) x = 6
z = 6-25 / 10 = -19/10 = -1.9

Hope that helped
You might be interested in
What is the total amount in an account after 3 years if the interest is compounded annually on an amount of $3200 at 4%?
lorasvet [3.4K]

Answer:

$3599.57

Step-by-step explanation:

Using the compound interest formula Accrued Amount = P (1 + r)^t

where Accrued amount is to be determined

P = principal; $3200

r = 4% = 0.04

t = number of years = 3

Therefore

Accrued amount = 3200 (1 + 0.04)^3

= 3200 x 1.04^3

= 3200 x 1.1249

= 3599.57

The total amount after 3 years is $3599.57

8 0
2 years ago
Taven mixes 18 liters of 14% acid solution with a 35% acid solution, which results in 23% acid solution.
miv72 [106K]
(0.35x + 0.14 * 18) / y = 0.23
x + 18 = y
4 0
3 years ago
What fraction greater than one can you write 4 3/5?
mina [271]
You just change the mixed number into an improper fraction.
4 3/5
5x4=20
20+3=23
23/5
3 0
3 years ago
Read 2 more answers
Someone help me please
Ksivusya [100]

Answer:

maybe the answer is 12 units.

8 0
2 years ago
David cut a board 20 foot long into four equal pieces. Which expression does NOT equal the length of one of the pieces in feet?
AURORKA [14]

Answer:

the awnser would be a

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • If SALARY(HOURS) is the function that describes Al's salary at Bit Labs based on his training, SALARY(56 HOURS), SALARY(56), and
    6·1 answer
  • A recipe for lemon cranberry pound cake calls for 80 mL of lemon juice and 240 ML of plain yogurt. How many liters of lemon juic
    7·2 answers
  • What is the value of (10 – 6)2 + 6 • 2 – (3 + 2)2? A. 10 B. 3 C. –1 D. –5
    5·2 answers
  • What is the value of the expression (-7)(3)-(5)-3)?
    15·2 answers
  • PLEASE HELP MEH WILL ARK BRAINLIST
    12·2 answers
  • PLS HELP IM TIMED!!
    13·2 answers
  • This is the last question please help
    10·1 answer
  • F(x) = 3x + 8<br> Inverse function?
    7·1 answer
  • This is a number line, how can these fragments be on these positions? ​
    5·1 answer
  • QUETSION 6 PLS HELP MEE
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!