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stira [4]
3 years ago
7

Michelle wants to carpet a room that is 215 square feet. The chart below indicates

Mathematics
1 answer:
zimovet [89]3 years ago
4 0
Explained in the photo below. Hope this is right!

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What graph shows a rate of $7.50 per hour
liraira [26]

Answer:

we can't see the graph

Step-by-step explanation:

gdhdhd

4 0
3 years ago
What is the value of 1I2L3F4
sp2606 [1]

Answer:

The next Value is E

Step-by-step explanation:

The general pattern is number-letter-number-letter and so on. Hence, the next character in the given sequence is a letter. Looking at the design of the letters, "I" is made up of 1 line, "L" is made up of 2 lines, and "F" is made up of 3 lines. Following this pattern, the next letter would consist of 4 lines. Hence the next value is "E", which is made up of 4 lines.

6 0
3 years ago
In a recent​ year, an author wrote 169 checks. Use the Poisson distribution to find the probability​ that, on a randomly selecte
grigory [225]
We should first calculate the average number of checks he wrote per day.  To do that, divide 169 by 365 (the number of days in a year) and you get (rounded) 0.463.  This will be λ in our Poisson distribution.  Our formula is
P(X=k)= \frac{ \lambda ^{k}-e^{-\lambda} }{k!}.  We want to evaluate this formula for X≥1, so first we must evaluate our case at k=0.  
P(X=0)= \frac{0.463 ^{0}-e ^{-0.463} }{0!} \\ = \frac{1-e ^{-0.463} }{1} =0.3706
To find P(X≥1), we find 1-P(X<1).  Since the author cannot write a negative number of checks, this means we are finding 1-P(X=0).  Therefore we have 1-0.3706=0.6294.
There is a 63% chance that the author will write a check on any given day in the year.<em />
8 0
3 years ago
A study was conducted to find out if a new exercise program was more effective than an old one at improving cardiovascular fitne
BaLLatris [955]

Answer:

Step-by-step explanation:

Given that a study was conducted to find out if a new exercise program was more effective than an old one at improving cardiovascular fitness.

Subjects were randomly selected to participate and then randomly assigned to one of the two programs. After six months of exercising, they were given a score based on their fitness performance. Scores ranged from 19 to 73, with higher scores indicating higher performance.

Here there are two groups one for each program.  After recording the scores groupwise, mean, std deviation of each group to be calculated.

Then independent sample test (option B) to be done.

Paired data set is not right because same person cannot be in two programs.

Here proportion is not recorded so D is wrong.  Since variance is not checked anova is not right.  Independence is not checked so E is wrong.  Regression is wrong because there is no estimate for regression line here

B) is right.

6 0
3 years ago
Sheila has five times as many markers as day together they have 18 markers how many markers does Sheila have
amid [387]
Is the answer 15? If not are there any options?
3 0
3 years ago
Read 2 more answers
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