Answer:
0
Step-by-step explanation:
Y2-y1/x2-x1
5-5/9-10 =0/-1. Slope is 0
7/12
So we first need to add up all the marbles so there are 12 marbles to pick from so we know that there is 7 orange marbles and since there are only three colors and two of them we don’t want pick there is a 7/12 chance of getting a marble that isn’t yellow or blue and since we can’t simplify any further that’s the answer
The best way is to use real examples for them, things that trigger an actual memory or even a visual aid! (:
Good luck, rockstar!
I hope you pass, and good luck!
Hmm Lemme Think I Will Have A Answer Later Thank You
675 people will have score between 85 and 120
Step-by-step explanation:
Given
Mean = 100
SD = 15
If we have to find percentage of score between two values we have to find the z-score for both values and then area under the curve for both values
z-score is given by:
for a value x:

So,
For 85:


Now we have to find the area under the curve for both values of z-score. z-score tables are used for this purpose.
So,
For z1 : 0.1587
For z2: 0.9082
The area between z11 and z2:

So the probability of score between 85 and 120 is 0.7495
As the sample is of 900 people, the people with scores between 85 and 120 will be:
900*0.7495 = 674.55 people
Rounding off to nearest whole number
675 people will have score between 85 and 120
Keywords: Probability, SD
Learn more about probability at:
#LearnwithBrainly