Answer:
Step-by-step explanation:
Assuming a normal distribution for the distribution of the points scored by students in the exam, the formula for normal distribution is expressed as
z = (x - u)/s
Where
x = points scored by students
u = mean score
s = standard deviation
From the information given,
u = 70 points
s = 10.
We want to find the probability of students scored between 40 points and 100 points. It is expressed as
P(40 lesser than x lesser than or equal to 100)
For x = 40,
z = (40 - 70)/10 =-3.0
Looking at the normal distribution table, the corresponding z score is 0.0135
For x = 100,
z = (100 - 70)/10 =3.0
Looking at the normal distribution table, the corresponding z score is 0.99865
P(40 lesser than x lesser than or equal to 100) = 0.99865 - 0.0135 = 0.98515
The percentage of students scored between 40 points and 100 points will be 0.986 × 100 = 98.4%
Answer:
c
Step-by-step explanation:
$40,000
Let x be the sales amount.
600+0.02x=1000+0.01x
x=$40,000
Answer:
After 16 rounds the champion of Ping-Pong player can be determined.
Step-by-step explanation:
This is an example of geometric progression,
First term = 65,536
Now we need to find which term is 1 in this GP.
N th term of GP is given by
Substituting
Seventeenth term of this GP is 1.
That is after 16 rounds the champion of Ping-Pong player can be determined.
Answer:
because as distance goes up so does distance
