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Svet_ta [14]
4 years ago
9

A teacher randomly selects three students each month from a class of 30 students to be the students of the month. Each student r

eceives a
special certificate special seating in class, and a free homework pass. How many different groups of three students could be selected?
​
Mathematics
1 answer:
Lunna [17]4 years ago
4 0

Answer:

10 groups

Step-by-step explanation:

because 30 divided by 3 is 10

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Suppose S and T are mutually exclusive events. Find P(S or T) if P(S) = 29% and P(T) = 49%.
Verdich [7]

Mutually exclusive means that the intersection of the events is empty: P(S and T) = 0.


P(S or T) = P(S) + P(T) = 29% + 49% = 78%


If events S, T are not mutually exclusive, then P(S or T) = P(S) + P(T) - P(S and T)

5 0
3 years ago
How many more plants grew less than 10 in. than grew more than 10 in.?
insens350 [35]

Answer:

2 more plants did

Step-by-step explanation:

9, 12, 11, 8, 7, 9, 12, 12, 9, 11, 8, 9

9,8,7,9,9,8,9 Are the plants that are less then ten inches and there are 7

of them

12,11,12,12,11 Are the plants that are more than 10 inches tall and there are five.

2 more grew less than ten inches than they did 5 inches.

4 0
3 years ago
Use the box-and-whisker plots to determine which statements are true.
ExtremeBDS [4]

The true statements are :

the average monthly temperatures of New Orleans are not as varied as that of Indianapolis.

The median of the average monthly temperatures of New Orleans is equal to the upper quartile of the average monthly temperature of Indianapolis.

<h3>What are the true options?</h3>

A box plot is used to study the distribution and level of a set of scores. The box plot consists whiskers. The whiskers represents the minimum and maximum scores.

On the box, the first line to the left represents the lower (first) quartile. The next line on the box represents the median.  The third line on the box represents the upper (third) quartile.

Range for New Orleans = 85 - 50 = 35

Range for Indianapolis = 75 - 25 = 50

Median for New Orleans = 70

Upper quartile for  Indianapolis = 70

To learn more about box plots, please check: brainly.com/question/27215146

#SPJ1

5 0
2 years ago
<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B9%7D%7B32%7D%20.%20%5Cfrac%7B5%7D%7B6%7D%20.%20%5Cfrac%7B8%7D%7B15%7D%20" id="Tex
fomenos

( \frac{9}{32}  \times  \frac{5}{6}  )\times  \frac{8}{15}  \\
Let's do the bracket part first,
and solve further as shown,
( \frac{3}{32}  \times  \frac{5}{2}) \times  \frac{8}{15}  \\  = \frac{15}{64}  \times  \frac{8}{15}  \\  =  \frac{8}{64} \\   =  \frac{1}{8}
4 0
3 years ago
If a car is traveling 65mph how long will it take to drive 26 miles?
Anarel [89]

Answer:

the speed  s=65 mph

distance to reach d=26 miles

what is time required to reach 26 miles with a speed of 65mph , t?

distance =speed x time

time= d/s

t=26/65=0.4hrs=24minutes would be the answer

4 0
3 years ago
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