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Sonbull [250]
3 years ago
5

Imagine that the intelligence test score (M=100, SD =15) is perfectly correlated with SAT score. Your Z score on SAT is +1.0, yo

ur intelligence test score is likely to be:
Mathematics
1 answer:
Oksanka [162]3 years ago
4 0

Answer:

115

Step-by-step explanation:

Given :

Mean of intelligence score = 100

Standard deviation of intelligence score = 15

Since both are perfectly correlated,

The Zscore ON SAT = +1.0

Using the standard normal interpretation, Xcore on SAT of +1.0 means 1 standard deviation to the right

This means :

Mean + 1 standard deviation

100 + 1*15

= 115

We could use the Zscore formula directly too:

Zscore = (x - mean) / standard deviation

Zscore = +1 ; x = score

Hence, we have

1 = (x - 100) / 15

1 * 15 = x - 100

15 = x- 100

x = 15 + 100

x = 115

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What is 25% of 160 show your work
givi [52]

Answer:

40

Step-by-step explanation:

x / 160 = 25/100

x / 160 = 1/4

x = 1/4 * 160

x = 40

Hope this helps!

3 0
3 years ago
How many different 4 letter arrangements can be formed from the letters in the word cards
RUDIKE [14]
Slot method
1st slot, 5 options
2nd slot, 4 options (1 gone to the first slot)
3rd slot, 3 options (1 gone again)
4th slot,2 options (1 less)

multiply
5*4*3*2=120

answer is 120 arrangements
5 0
3 years ago
The Cat is a high-speed catamaran auto ferry that operates between City A and City B. The Cat can make the in about 3.5 hours at
Rama09 [41]

Answer:

196

Step-by-step explanation:

56*3.5=196

plz mark as brainliest

7 0
2 years ago
A football quarterback enjoys practicing his long passes over 40 yards. He misses the first pass 40% of the time. When he misses
laila [671]

Answer:

Probability of missing two passes in a row is 0.08.

Step-by-step explanation:

Event E = A football player misses twice in a row.

P(E) = ?

Event X = Football player misses the first pass

P(X) = 0.4

Event Y = Football player misses just after he first miss

P(Y) = 0.2

Both the events are exclusive so the probability of occuring of these two events can be calculated by the formula:

P(E) = P(X).P(Y)

P(E) = 0.4*0.2

P(E) = 0.08

4 0
3 years ago
What is the ratio of the number of 8 nickels to the number of 10 dimes?​
MakcuM [25]

Answer:

2/5

Step-by-step explanation:

start by 8*5 then 10 times 10 then simplify

4 0
2 years ago
Read 2 more answers
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