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bagirrra123 [75]
3 years ago
5

For a certain experiment, the available experimental units are 12 people—six females (f) and six males (m). Use (1f, 2f, 3f, 4f,

5f, 6f) to denote the females and (1m, 2m, 3m, 4m, 5m, 6m) to denote the males. There are to be six treatment groups: A, B, C, D, E, and G. If a randomized block design is used, with the experimental units blocked by gender, which assignment of treatments is not correct? (5 points) A: (2f, 1m), B: (1f, 2m), C: (6f, 3m), D: (4f, 4m), E: (3f, 5m), G: (5f, 6m) A: (6f, 5m), B: (2f, 4m), C: (3f, 3m), D: (4f, 2m), E: (5f, 1m), G: (1f, 6m) A: (1f, 1m), B: (2f, 2m), C: (3f, 3m), D: (4f, 4m), E: (5f, 5m), G: (6f, 6m) A: (1f, 2f), B: (1m, 2m), C: (3f, 3m), D: (4f, 4m), E: (5f, 5m), G: (6f, 6m)
Mathematics
1 answer:
Kryger [21]3 years ago
6 0

Answer:

I believe the correct answer would be the last one.

Step-by-step explanation:

The units are supposed to be blocked by gender. However, the first two units in the final option are blocked with two females in one group, and two males in the next. This is inconsistent with the blocking method used for the rest of the units.

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If a store has a $13 markup, what is the retail price of the CD rack?
zysi [14]

Answer:

cd=13+b

Step-by-step explanation:

the new cd price will be 13 plus whatever the original price was, b

i hope this helped

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4 0
4 years ago
A sample of 6500 automobiles found that 1560 of the automobiles were black, 3120 of the automobiles were sedans, and 1170 of the
andriy [413]

Answer:

P=0.54.

Step-by-step explanation:

We know that in a sample of 6500 automobiles found that 1560 of the automobiles were black, 3120 of the automobiles were sedans, and 1170 of the automobiles were black sedans.

We calculate the number of  sedans that are not black:

3120-1170=1950

We calculate the number of black cars  that are not sedans:

1560-1170=390

The number of automobiles  which are black or a sedan is

1950+390+1170=3510.

The probability that  the automobile is black or a sedan is:

P=3510/6500

P=0.54.

7 0
3 years ago
Determine is an outlier is present in the given data set: 43, 69, 78, 88, 54, 73, <br> 54, 59,70
kodGreya [7K]

Answer:

43

Step-by-step explanation:

43 is the most the lowest number while the others are around the same range

Hope this helps! Pls mark brainliest!

6 0
3 years ago
A ball is thrown vertically in the air with a velocity of 90ft/s. Use the projectile formula h=−16t2+v0t to determine at what ti
Debora [2.8K]

Answer:

t=1.7 \ sec\ , t=4.0\ sec

Step-by-step explanation:

<u>Vertical Throw</u>

It refers to a situation where an object is thrown verticaly upwards with some inicial speed v_o and let in free air (no friction) until it completes its movement up and finally returns to the very same point of lauch. The only acting force is gravity

The projectile formula is given as

h=-16t^2+v_0t

where t is time in seconds, h is the height in feet and v is the speed in ft/sec

We are required to find the time t where h=120 ft, knowing v_o=90\ ft/sec

-16t^2+90t=120

Rearranging

-16t^2+90t-120=0

This is a second-degree equation which will be solved with the formula

\displaystyle x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}

\displaystyle x=\frac{-90\pm \sqrt{90^2-4(-16)(-120)}}{2(-16)}

\displaystyle x=\frac{-90\pm \sqrt{1380}}{-32}

Two solutions are obtained

\boxed{t=1.7 \ sec\ , t= 4.\ sec}

Both solutions are possible because the ball actually is at 120 ft in its way up and then when going down

6 0
3 years ago
Read 2 more answers
Find the missing value.
Oksi-84 [34.3K]

Answer:

The correct answer is 6

Step-by-step explanation:

x/10=3/5

then cross multiply

it will now give

5x=30

x=6

3 0
2 years ago
Read 2 more answers
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