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azamat
3 years ago
10

For a normal distribution, what z-score value separates the lowest 20% of the distribution from the highest 80%?

Mathematics
1 answer:
Elden [556K]3 years ago
4 0
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A scuba diver used the expression below to describe his position in relation to sea level. 2 + (negative 20) + 8 Which statement
ELEN [110]

Answer:

Scuba diver started at 2 feet above the sea level, dove down 20 feet, and rose up 8 feet

Step-by-step explanation:

The initial number is 2 which is more than  0 that means the diver did not start at a ground  level but above than that.

The negative 20 denotes that he went down the sea level, to the extent of the number provided in feet.

Further, after that dive the positive number provides the height in feet covered to rise up from the down level of dive.

3 0
4 years ago
Question 1
Alisiya [41]
Question 1   240/45=5.333333333333
4 0
3 years ago
What is the phase shift of y = sin(1/2 x - pi/2)?
meriva

Answer:

π

Step-by-step explanation:

The standard form of the sine function is

y = a sin(bx + c)

where a is the amplitude, period = \frac{2\pi }{b} and

phase shift = - \frac{c}{b}

here b = \frac{1}{2}, c = - \frac{\pi }{2}

phase shift = - \frac{-\frac{\pi }{2} }{\frac{1}{2} }

= \frac{\pi }{2} × 2 = π

         

6 0
3 years ago
The image of the point (7,-4) under a translation is (12,-5). Find the coordinates
Afina-wow [57]
The translation is right 5, down 1, AKA (x+5, y-1). The original coordinate of the point given is (-8,-3). Use the same translation so ((-8 + 5), (-3 - 1)) = (-3,-4)
3 0
3 years ago
5a + 3a + 0 and 15a is this equi
Tom [10]

Answer:

0 and 23a

Step-by-step explanation:

I added the A's only and left the 0 alone

4 0
3 years ago
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