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DerKrebs [107]
3 years ago
7

which situation would be represented by a discrete probability distribution? a) the weight of fire fighters b) the overall avera

ge of a math class c) the ages of all the students in a class d) the number of students who could distinguish between two different soft drinks
Mathematics
1 answer:
IgorC [24]3 years ago
4 0
A discrete variable is a variable which may take only certain discrete values; for example the number of people in a household is a discrete variable which may have the value 1, 2, 3, etc. but cannot have intermediate values such as 1.473 or 3.732.
Choice d) can be represented by a discrete probability distribution, the other choices cannot be so represented.
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DochEvi [55]

Answer:

= 29.82 yards/second

Step-by-step explanation:

The speed is given in the problem.  We just need to convert its units.  The multiplicative identity (that is, 1) may be used to change the units without changing the value.  (note:  do you know what the additive identity is?)

     61 miles per hour

    (61 miles) / (1 hour)

   (61 miles)/(1 hour)*1

   ((61 miles)/(1 hour))*((5280 feet)/(1 mile))

   ((61 miles)/(1 hour))*((5280 feet)/(1 mile))*((1 yard)/(3 feet))*((1 hour)/(60 minutes))*((1 minute)/(60 seconds))

      note:  miles, feet, hours, minutes cancel out; leaving yards per second

    (61/1)*(5280/1)*(1/3)*(1/60)*(1/60)   yards/second          (note: I write that way to paste into Excel)

8 0
3 years ago
What is 90% of 50?<br> Show all work
Natali [406]
First find out what 10 percent of 50 is
Do 50/10
I got 5
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You should get 45. Thanks (:
8 0
3 years ago
Read 2 more answers
8 Graph the equation y = –20x + 500.
Tomtit [17]

Answer:

Step-by-step explanation:

you have to plot the y-intercept first so since we know that the y-intercept is 500 from the y=mx+b format, you have to plug in (0,500). Then, we use the slope or the m provided in the equation with is -20. This means you have to go down 20, and right 1 since it is -20/1 or 20 down and 1 run. then you just connect the dots to finish your line.

7 0
2 years ago
The drama club at Central sells hot chocolate and coffee at the high school football games. At the last game, they had sales of
xxTIMURxx [149]

Answer:

I could be wrong but the coffee is 200 and the hot choclet is 266.666666667

Step-by-step explanation:

I used math and a calculator.

3 0
2 years ago
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Katen [24]

Answer:

4/5 is the slope

Step-by-step explanation:

the formula is y=mx +b

m = slope

b= y intercept

Therefore, the slope in 4/5

5 0
3 years ago
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