Answer:
0.3575
Step-by-step explanation:
A population with a normal distribution has a mean of 104 and a standard deviation of 15. A sample of 30 items is taken from that population. (a) (4 points) What is the probability of the sample mean is not less than 103?
The probability of the sample mean is not less than 103 means the sample mean is equal to 103
We solve using the z score formula
z = (x-μ)/σ/√n
where
x is the raw score = 103
μ is the population mean = 104
σ is the population standard deviation = 15
n is the random number of sample = 30
z = 103 - 104/15/√30
z = -1/2.7386127875
z = -0.36515
Probability value from Z-Table:
P(x≤ 103) = 0.3575
Therefore, the probability of the sample mean is not less than 103 is 0.3575
can someone help me with this please???
Answer:
diarrhea
Step-by-step explanation:
deShawn bought 10 shirts for a total of $95 tee shirts cost $8 and long sleeve shirts cost $11 how many of each type of shirts did he buy
Answer:
5 long sleeve, 5 tee shirtd.
During bowling practice, Oscar rolled 14 strikes out of 70 attempts, What
percent of Oscar's attempts were strikes?
Answer:
20% or 0.2
Step-by-step explanation:
u do 14÷70=0.2
to get the percent you move the decimal two places right
0.2⇒20.0⇒20%
Explain:
10 to the 3rd power
Answer:
1000
Step-by-step explanation:
just trust me <3
here is a weather thermometer three numbers have been left off. What numbers go in the boxes?
Answer:
Ask the question again and make sure to upload the photo.
Step-by-step explanation:
A bag has sixteen marbles in it. There are four of each color. There
are four red, four blue, four green and four yellow.
What is the probability that you will pull a red marble out of the bag?
Answer: 25 percent
Step-by-step explanation:
The probability of pulling out a red colored marble is [tex]\frac{1}{4}[/tex] or 25%.
What is probability?'Probability is a branch of math which deals with finding out the likelihood of the occurrence of an event.'
According to the given problem,
Total number of marbles = 16
Number of red marbles = 4
Probability = [tex]\frac{No of possible outcomes}{Total number of outcomes}[/tex]
The number of possible outcome is the number of red marbles = 4
Total number of outcomes is the total number of marbles = 16
⇒ Probability = [tex]\frac{4}{16}[/tex]
= [tex]\frac{1}{4}[/tex]
or, [tex]\frac{1}{4}[/tex] × 100
= 25%
Hence, the probability of pulling out a red marble is 25%.
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PROBABILITY!! Please help huge part of my grade will give BRAINLIEST or venmo you (only need the last 2)
Answer:
a record of all the mail that a mailbox identifies as Junk
How do I do this I need help I don’t wanna fail this quarter!!!!
Answer:
SSA
Step-by-step explanation:
Side Side Angle
Which of the following measures of variability can be used to compare two data sets? Select all that apply.3 Answers PLZ FAST ASAP
A: Mean
B:Interquartile range
C.Median
D: Mean Absolute Deviation (MAD)
E: Range
Answer:
Its Interquartile range, Mad and range
Step-by-step explanation:
Please help I have five minutes left and I just need this one question. -1. Use the laws of exponents to simplify the expression below. Write your answer as a power. Use the Caret (^) symbol to indicate
an exponent. For example, 58 can be typed in as 5^8.
(4^3)^3 · 4^2
4^8
Answer:
64
Step-by-step explanation:
That was the whole number I had gotten, I could have done that wrong because it's been a while since I've done that
I have alot of missing assignments I have to get done I have 5 more
Answer:
26741 and 12
Step-by-step explanation:
(1)
The area ( A) of a rectangle is calculated as
A = length × width , then
A = 221 × 121 = 26741
(2)
The area (A) of a triangle is calculated as
A = [tex]\frac{1}{2}[/tex] × base × height , then
A= [tex]\frac{1}{2}[/tex] × 8 × 3 = 4 × 3 = 12
Great ran a one mile race in 5 minutes. Inex ran a quarter mile in 1 minute and 20 seconds.
If Inez ran the mile at her quarter mile pace of 1 minute and 20 seconds, how fast would she run the mile? Write your answer in minutes and seconds. (There are 4 quarter miles in a one mile race). 1._______)
2. Which of the two runners had the fastest time? ______
3. How much faster was her mile in seconds? _______
Answer:
1. The time it would take Inex to run 1 mile is 5 minutes 20 seconds
2. Great has the fastest (lowest) time
3. When running a mile Great is faster than Inex by 20 seconds
Step-by-step explanation:
1. The distance Great ran in 5 minutes = 1 mile
The distance Inex ran in 1 minute and 20 seconds = A quarte mile = (1/4) mile
We note that 1 minute and 20 seconds = 4/3 minutes
Given that the time Inex ran 1/4 mile = 4/3 minutes...(1)
We have;
The time it would take Inex to run 1 mile is given as follows;
1 = (1/4) ÷ (1/4)
1 mile = ((1/4) ÷ (1/4)) mile = (1/4) mile/(1/4)
The time to run 1 mile = The time to run (1/4) mile/(1/4) = 4/3 minutes/(1/4) (by dividing both sides of equation (1) by (1/4),
4/3 minutes/(1/4) = 4 × 4/3 minutes = 16/3 minutes = [tex]5\frac{1}{3}[/tex] minutes= 5 minutes 20 seconds
The time it would take Inex to run 1 mile = 5 minutes 20 seconds
2. Given that Great ran a one mile race in 5 minutes, and Inex ran the same one mile race in 1 minute and 20 seconds, Great has the fastest (lowest) time
3. The amount faster Great's time is faster than Inex's time to run one mile = 5 minute 20 seconds - 5 minutes = 20 seconds.
Find the value of each variable in the given parallelogram
Answer:
I cant see it
Step-by-step explanation:
I don’t get this can someone explain please
Answer:
2^4/4^2 will be 1, I will explain after answering,
2 x 3^1 = 6
(4 - 2) ^2 = 4
First. Evaluate the exponents in the fraction above
2 x 2 x 2 x 2 = 16
4 x 4 = 16
and 16 over 16 would equal 1 whole
3 to the power of 1 means just 3 so 2 x 3 = 6 (easy multiplication)
Evaluate in the parenthesis first: 4 - 2 = 2 then 2 to the power of 2 would be 2 x 2 = 4
g(x)=-4x² - 3 find g(-3)
Answer:
-39
Step-by-step explanation:
just plug -3 into x
-4(-3)^2-3=-4*9-3=-36-3=-39
so, g(-3)=-39
hope this helped
The third grade class collected coins for the week.Class one raised 34.00. Class two raised 45.00 .Class three raised 76.00.How much did all three classes raise?(rounnd to the nearest tens
Answer:
160 well it was 155 but u round up to 160
Step-by-step explanation:
Answer:
34+45+76=155 Rounded to the nearest tens, would be $160.00
Step-by-step explanation:
pls help with math !
Answer:
181 Square cm.
Step-by-step explanation:
can u give me the answer
Jim's parents keep a chart on the wall where they mark how much Jim grows each year. When Jim was 15, he grew 1/4 of an inch and when he was 16, he grew 1/2 of an inch. In total, how much did Jim grow in during those two years?
Answer: 3/4 inch
Step-by-step explanation:
When Jim was 15, he grew 1/4 of an inch and when he was 16, he grew 1/2 of an inch.
His growth during those two years will be:
= 1/4 + 1/2
= 1/4 + 2/4
= 3/4 inch
His growth increased by 3/4 inches.
help me please
i need x
Answer:
x=42
Step-by-step explanation:
Just do 24/32 on calculator to get .75
Then multiply .75 by 56, the side you are looking for to get 42
y=x+2
2x-y=-4
solve the equations using a substitution
determine the length of side y, to the nearest tenth, in each of the following triangles. Please show work
1. A triangle has side lengths of 1, 2, and 3. Can these lengths form a triangle? Use the Triangle Inequality Theorem to prove whether these lengths form a triangle. Show all work. DUE IN 1 HOUR
Step-by-step explanation:
step 1. the 3rd side of a triangle must be less than the addition of the other two sides
step 2. 3 is not less than the addition of 1 and 2
step 3. no. this cannot be a triangle.
Select the correct statement about the function represented by the table. X y 1 9 2 36 WIN 144 4. 576 5 2304 O A. It is a linear function because the difference between each * and y value is constant O B. It is a linear function because the yvalues increase by an equal difference over equal intervals of x-values. O C. It is an exponential function because the yvalues increase by an equal factor over equal intervals of x-values. D. It is an exponential function because the factor between each - and y value is constant.
The function is an exponential function because the y values increase by an equal factor over equal intervals of x-values.
What is an equation?An equation is an expression that shows the relationship between two or more numbers and variables.
At point (1, 9):
9 = ab¹
At point (2, 36):
36 = ab²
b = 4, a = 2.25
y = 2.25(4)ˣ
The function is an exponential function because the y values increase by an equal factor over equal intervals of x-values.
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3 What is the slope of the line that contains the coordinate points (8,-3) and (-2, 7)?
A -1
B -9/11
C -5/3
D -2/5
Answer:
c
Step-by-step explanation:
Is -2q + 7 in standard form
Answer:
Yes
Step-by-step explanation:
It is in standard form.
PLZ help me im fairly confused with all of these please dont answer if your just going for the points and not really helping me i really need help
find the radius of a circle with a circumference of 25x yards
find the radius of a circle with an area of 280.13 square inches
find the diameter of a circle with an area of 615.75 cm squared
find the diameter of a circle with an area of 90.25x m squared
find the area of a circle with a circumference of 26x feet
find the circumference of a circle with an area of 289x mm squared
Answer:
there r 2 formulas for circumference: C= 2xpixr and c=pixd so use the one you need, plug in the values and solve
Step-by-step explanation:
Is it A. , B. , C. , D.
And show your work
Answer:
C
Step-by-step explanation:
please help mee , i will marl the brainliest .
Answer:
n = - 6
Step-by-step explanation:
Given k(x) then k(x) + n is a vertical translation of k(x)
• If n > 0 then a shift up of n units
• If n < 0 then a shift down of n units
Here k(x) has been shifted from (0, 0 ) to (0, - 6 )
That is a shift down of 6 units, then
p(x) = k(x) - 6
That is n = - 6
A what is a positive whole number greater than 1 that has only one and itself as factors?
the answer is a "prime number"