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sveta [45]
3 years ago
14

a normal distribution pf data has a mean of 15 and a standard deviation of 4 how many standard deviations from the mean is 25

Mathematics
2 answers:
LuckyWell [14K]3 years ago
8 0
What were your given answer choices
marin [14]3 years ago
5 0

Answer:

c 2.5

Step-by-step explanation:

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A box contains 10 tags, numbered 1 through 10, with a different number on each tag. A second box contains
Tju [1.3M]

Answer:

(E) 29.0

Step-by-step explanation:

If a tag is drawn at random from each box, the expected value of the sum of the tags is the sum of the expected values for each tag.

The expected value for each tag is the mean value of the numbers in its box.

EV = \frac{1+2+3+4+5+6+7+8+9+10}{10} +\frac{20+21+22+23+24+25+26+27}{8} \\EV = 5.5 +23.5\\EV= 29

The expected value of the sum of the numbers on the two selected tags is 29.

4 0
3 years ago
Malloree wants to calculate the cost of keeping her hot tub heated to a constant temperature. Her hot tub is a square 7 feet on
djyliett [7]
It’s a square so it means you have to multiply 7*7*2.75 to get 134.75
Multiply that by 7.5 because one cubic foot holds 7.5 gallons
1010.625 *.03 since its 3 cents per gallon
30.318
Round up
$30.32 is the answer
4 0
3 years ago
Read 2 more answers
The distance from the tetherball pole to the edge of the circle is 5 feet. What is the circumference of the circle? 5 ft A. 62.9
marshall27 [118]

Answer:

31.4

Step-by-step explanation:

2*Pi*5 equals 31.4 ft correct me if I’m wrong

3 0
3 years ago
Which triangles are congruent in the figure?
Andru [333]

Answer:

ΔJLK≅ ΔMLN

Step-by-step explanation:

SSS

6 0
3 years ago
A= 2LW+2LH+2HW solve w
svetlana [45]
Pkay so here is YOUR ansew=wer uyour welcoeme i am ammath lover it is cofrrect W=(2LH/2L+2H)A
6 0
3 years ago
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