Well, mode is the number that occurs most, so the answer would be 7, since that is the most appearing number.
Answer:
2x+48=6x
Step-by-step explanation:
20 sixth graders / 6 sixth graders / 216 students
Answer:
Step-by-step explanation:
Since the incubation times are approximately normally distributed, we would apply the formula for normal distribution which is expressed as
z = (x - µ)/σ
Where
x = incubation times of fertilized eggs in days
µ = mean incubation time
σ = standard deviation
From the information given,
µ = 19 days
σ = 1 day
a) For the 20th percentile for incubation times, it means that 20% of the incubation times are below or even equal to 19 days(on the left side). We would determine the z score corresponding to 20%(20/100 = 0.2)
Looking at the normal distribution table, the z score corresponding to the probability value is - 0.84
Therefore,
- 0.84 = (x - 19)/1
x = - 0.84 + 19 = 18.16
b) for the incubation times that make up the middle 97% of fertilized eggs, the probability is 97% that the incubation times lie below and above 19 days. Thus, we would determine 2 z values. From the normal distribution table, the two z values corresponding to 0.97 are
1.89 and - 1.89
For z = 1.89,
1.89 = (x - 19)/1
x = 1.89 + 19 = 20.89 days
For z = - 1.89,
- 1.89 = (x - 19)/1
x = - 1.89 + 19 = 17.11 days
the incubation times that make up the middle 97% of fertilized eggs are
17.11 days and 20.89 days
The number of ways is 40320
<h3>How many ways could a group of 8 seated?</h3>
The group of people is given as:
Group = 8
The number of ways this group can be seated is calculated as:
Ways = Group !
So, we have
Ways = 8!
Expand
Ways = 8 * 7 * 6 * 5 * 4 * 3 *2 *1
Evaluate
Ways = 40320
Hence, the number of ways is 40320
Read more about factorial at:
brainly.com/question/22824482
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