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Alisiya [41]
3 years ago
11

Lower bound is 18, upper bound is 28. what is the point estimate of the population mean

Mathematics
2 answers:
MrRissso [65]3 years ago
8 0
23 is a good estimate of the mean
hichkok12 [17]3 years ago
7 0
23 is the mean estimate
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If he rows with the current, Mishka rows 48 km in 3 hours. If he rows against the current, it takes 4 hours to travel the same d
Zarrin [17]
<h2>Mishka's speed = 14 km/hr</h2><h2>Current speed = 2 km/hr</h2>

Step-by-step explanation:

Let the speed of rowing be r and speed of current be c.

If he rows with the current, Mishka rows 48 km in 3 hours.

        Relative speed = r + c

        Distance = 48 km

        Time = 3 hours

        48 = 3 x ( r+c)

        r + c = 16 ---------------------------eqn 1

If he rows against the current, it takes 4 hours to travel the same distance.

        Relative speed = r - c

        Distance = 48 km

        Time = 4 hours

        48 = 4 x ( r - c)

        r - c = 12 ---------------------------eqn 2

eqn 1 + eqn 2

        2r = 28

          r = 14 km/hr

Substituting in eqn 1

         14 + c = 16

                c = 2 km/hr

Mishka's speed = 14 km/hr

Current speed = 2 km/hr

6 0
3 years ago
Emilia has a bag of colored marbles. The bag contains the same ratio of red marbles to blue marbles as the ratio of green marble
scoray [572]
Red =18
blue=48
green=12
orange=?
red/blue =green/orange
so 18/48=12/orange
let orange = X and solve the equation
8 0
2 years ago
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Can someone please help me on this question?
Olin [163]
The ends of the graph will extend in opposite directions.

Hope this helped!
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The box office manager said about 5,000 people attended the show. Write a number that could be the actual attendance if he corre
IRINA_888 [86]
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4900 = 5000
4800 = 5000
4700 = 5000
4600 = 5000
4500 = 5000
</span><span />
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3 years ago
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How do I turn 1/4 into a decimal?​
dybincka [34]

Answer:

No problem ;)

Step-by-step explanation:

1/4: 0.25

2/4:0.50

3/4: 0.75

4/4(1): 1

<em>Hope </em><em>this</em><em> </em><em>helps </em><em>you!</em>

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