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nlexa [21]
2 years ago
8

Assume that they all agree on the sample size and the sample mean use the pairs below to select the team that has the smallest s

ample standard deviation?
Mathematics
1 answer:
Archy [21]2 years ago
6 0

Step-by-step explanation:

A.Confidence Level: 99.7%; Confidence Interval: 42 to 48 

B.Confidence Level: 95%; Confidence Interval: 43 to 47

 C.Confidence Level: 68%; Confidence Interval: 44 to 46 

D.Confidence Level: 95%; Confidence Interval: 44 to 46

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What number is 150% more than 2/3
Stella [2.4K]

Answer:

4.5

Step-by-step explanation:

4 0
3 years ago
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Two trains leave towns 1490 kilometers apart at the same time and travel toward each other. One train travels 20 km/h slower tha
antiseptic1488 [7]

Answer:

the rate of each train is 139 km/h and 159 km/h.

Step-by-step explanation:

let

v = the rate of the slower train

v + 20 = the rate of the faster train

d = 1490 km the distance that the two train will travel

t = 5 hr the time of the travel

since speed = distance/time => distance = speed*time

v*t + (v+20)t = d

5v + 5(v + 20) = 1490

5v+5(v+20)=1490

Step 1: Simplify both sides of the equation.

5v+5(v+20)=1490

5v+(5)(v)+(5)(20)=1490(Distribute)

5v+5v+100=1490

(5v+5v)+(100)=1490(Combine Like Terms)

10v+100=1490

10v+100=1490

Step 2: Subtract 100 from both sides.

10v+100−100=1490−100

10v=1390

Step 3: Divide both sides by 10.

10v/10 = 1390/10

v = 139km/h

Next

we add 139 to 20

139 + 20 = 159 km/h

the rate of each train is 139 km/h and 159 km/h.

7 0
3 years ago
In a particular class of 28 students,8 students are men what fractions of the students is female in the class
WITCHER [35]
20/28 are female. Since there are 8 male students you just have to subtract 28-8 and you'll get the female total.
8 0
3 years ago
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A basketball player is fouled while attempting to make a basket and receives two free throws. The opposing coach believes there
zzz [600]

Answer:

a)

P(X = 0) = 0.64

P(X = 1) = 0.11

P(X = 2) = 0.25

b) 0.75 = 75% probability that he makes no more than one of the shots

Step-by-step explanation:

We have these following probabilities:

64% = 0.64 probability that he misses both shots, that is, makes none of them.

11% = 0.11 probability that he makes one shot.

25% = 0.25 probability that he makes both shots.

a. Construct the appropriate probability distribution. (Round your answers to 2 decimal places.)

Binomial probability distribution, in which P(X = x) is the probability of making x shots. So

P(X = 0) = 0.64

P(X = 1) = 0.11

P(X = 2) = 0.25

b. What is the probability that he makes no more than one of the shots? (Round your answer to 2 decimal places.)

P(X \leq 1) = P(X = 0) + P(X = 1) = 0.64 + 0.11 = 0.75

0.75 = 75% probability that he makes no more than one of the shots

7 0
4 years ago
Hãy giải phương trình bậc nhất 7-2x=22-3x
Step2247 [10]

Answer:

7-2x=22-3x

-2x=15-3x (minus 7 from both side)

x=15 ( plus 3x from both side)

3 0
3 years ago
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