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mihalych1998 [28]
3 years ago
6

What is the probability that an individual, selected at random, will score below the mean on any normally distributed characteri

stic?
Mathematics
1 answer:
dedylja [7]3 years ago
3 0

Answer:

the probability that an individual, selected at random, will score below the mean on any normally distributed characteristic is just about 0.5.

Step-by-step explanation:

This probability in normal distribution corresponds to z-score of 0. Using normal distribution tables.

P(z < 0) = 1 - P(z ≥ 0) = 1 - 0.5 = 0.5

Which is very logical, to score below the mean on a normal distribution, the probability is just less than 0.5.

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What is 3.2 - 5.1n - 3n + 5 simplified
nalin [4]

Answer:

−8.1n+8.2

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Resolva a equação a seguir:<br> (x-3/2) + (2x-3/4) = (x²) + (x)-(17/2)
bagirrra123 [75]
X =(-8+√464)/-8=1-1/2√<span> 29 </span><span>= -1.693</span>
8 0
3 years ago
An oxygen tank contained 212 12/3 liters of oxygen before 27 1/3 liters were used. If the tank can hold 240 3/8 liters, how much
lukranit [14]
So, initially   240\frac{3}{8} -212 \frac{12}{3} were empty:

this is :

240  \frac{3}{8} - 212  \frac{12}{3}  = 240  \frac{3}{8} - 212  +4 = 240  \frac{3}{8} - 216= 24  \frac{3}{8}

12/4 is 4 so that's why i substituted it with 4.

now, later 27 1/3 were used so we add this tho the original empty space

 24  \frac{3}{8}+ 27  \frac{1}{3} =  24  \frac{9}{24}+ 27  \frac{8}{24} = 51  \frac{17}{24}


which is the result!





5 0
3 years ago
A swimming pool is open for 7 1/2 hours during the day the pool keeps one lifeguard shift is 1 1/16 hours long how many shifts a
mariarad [96]

Answer:

7 1/17 shifts

Step-by-step explanation:

That would be 7 1/2 divided by 1 1/16

=  15/2 / 17/16

= 15/2 * 16/17

= 15 * 8  /  17

=  120/17

= 7  1/17  shifts

6 0
3 years ago
Seven x's and 3y's cost as much as 4z's. One z costs as much as 1x plus 1y together. How many x's cost as much as 1y?
Pie

Answer:

Step-by-step explanation:

Equations

7x + 3y = 4z

<em>Second equation</em>

x + y = z                          Multiply the entire equation by 4

4[x + y = z]                      Now distribute the 4 through the equation

4x + 4y = 4z                    Both equations = 4z. Equate the lefts.

<em>Third equation   </em>

7x+3y = 4x + 4y              Subtract 3y from both sides

7x + 3y -3y = 4x + 4y -3y

7x = y + 4x                      Subtract 4x from both sides

7x - 4x = y + 4x - 4x       Combine

3x = y

Answer: 3x = y

6 0
2 years ago
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