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dolphi86 [110]
3 years ago
11

Use the accompanying table of standard scores and their percentiles under the normal distribution to find the approximate standa

rd score of the following data values. Then state the approximate number of standard deviations that the value lies above or below the mean.
a. A data value in the 60th percentile
b. A data value in the 80th percentile
c. A data value in the 54th percentile

a. The standard score for the 60th percentile is approximately
nothing.
​(Round to two decimal places as​ needed.)
Mathematics
1 answer:
olganol [36]3 years ago
3 0

Answer:

option a

Step-by-step explanation:

markme brainliest

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sales at flower shop were $814 this week. this is $131 less than the sales last week. what were last weeks sales?​
sertanlavr [38]

Answer: The sales last were $945.

Step-by-step explanation: The sales this week are $945 and they are $131 less than that of last week. This means that they have reduce by $131,therefore we have to add the two values

7 0
3 years ago
The probability that Latisha orders french fries at lunch is .32 and the probability that she orders a grilled cheese and fries
EastWind [94]

There is a typo error in the last part of the question. The corrected part is-

"If the probability that she orders just a grilled cheese sandwich is .76, what is the probability that she will order a grilled cheese or fries?"

Answer:

The probability that she will order a grilled cheese sandwich or fries is <u>0.43.</u>

Step-by-step explanation:

Given:

Probability of ordering fries is, P(F)=0.32

Probability of ordering cheese sandwich is, P(S)=0.76

Probability of ordering both sandwich and fries is, P(F\cap S)=0.65

Probability of ordering cheese sandwich or fries is given by the union of both the events 'F' and 'S' given as P(F\cup S).

Now, using addition theorem of probability, we get:

P(F\cup S)=P(F)+P(S)-P(F\cap S)\\P(F\cup S)=0.32+0.76-0.65\\P(F\cup S)=0.43

Therefore, probability of ordering cheese sandwich or fries is 0.43.

8 0
3 years ago
Vincent works 8 hours a day for 5 days. How much does he earn at the rate of $.97 per hour?
Tresset [83]

Answer:

$38.8

Step-by-step explanation:

First, find how much money he gets paid in a day. Multiply 8 x .97, which equals $7.76. Then, multiply $7.76 x 5 to see how much he gets paid in 5 days. $7.76 x 5= $38.8

Hope this helps!

6 0
3 years ago
Read 2 more answers
The angle θ lies in Quadrant II. sinθ=3/4 What is cosθ ?
Elden [556K]

Hello from MrBillDoesMath

Answer:

[email protected] = - sqrt(7)/ 4    

which is choice B

Discussion:

This problem can be solved by drawing triangles and looking at ratios of sides or by using the trig identity:

([email protected])^2 + (sin2)^2 = 1

If [email protected] = 3/4 , the

([email protected])^2 + (3/4)^2 = 1 =>              (subtract (3/4)^2 from both sides)

([email protected])^2 = 1 - (3/4)^2  = 1 - 9/16   = 7/16

So...... taking the square root of both sides gives

[email protected] =  +\- sqrt(7)/ sqrt(16) = +\- sqrt(7)/4

But is [email protected] positive or negative?  We are told that @ is in the second quadrant and cos(@) is negative in this quadrant, so our answer must be negative

[email protected] = - sqrt(7)/ 4    

which is choice B


Thank you,

Mr. B


4 0
3 years ago
help I need answer to both of the photos down below I’ll mark brainlest for both answers and give 20 points pls help
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I believe the first question is 4 feet / 1 second and the second answer is 16 oz / 1 lb
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