All categories

2 years ago

If the number 3 were added to the set {1,1,3,3,4,4,5}, which central tendency would change?

Mathematics

1 answer:

ziro4ka [17]2 years ago

8 0

I think it would be the mean

You might be interested in

Students love to put ranch dressing on everything, so Elvira needs to keep plenty in stock. The students eat about 2.25 gallons

leonid [27]

In 48 days, they would have consumed 108 gallons, and have 22 left, so yeah. 48 days

5 0

3 years ago

In the past, the average age of employees of a large corporation has been 40 years. Recently, the company has been hiring older

earnstyle [38]

Answer:

Step-by-step explanation:

In the past, mean of age of employees

i.e. $\mu = 40$

Recently sample was taken

n = sample size = 60

Mean of sample = 45

Std dev of sample s = 16

$H_0: \bar x = 40\\H_a: \bar x >40$

(Right tailed test)

Since only population std deviation is known we can use t test only

Std error = $\frac{s}{\sqrt{n} } \\=\frac{16}{\sqrt{61} } \\=2.049$

Mean difference = 45-40 =5

Test statistic t= $\frac{5}{2.049} \\=2.441$

df = 60

p value =0.008739

Since p < 0.05 we reject null hypothesis

The mean age has increased.

5 0

2 years ago

Dots sells t-shirts ($2) and shorts ($4). In April total sales were $456. People bought 4 times as many t-shirts as shorts. How

Doss [256]

Answer:

Dots sold 152 t-shirts and 38 shorts sold.

Step-by-step explanation:

Let t = t-shirts and s = shorts.

We know that people bought 4 times as many t-shorts as shorts, which can be set to the equation t = 4s

Since t-shirts cost $2, shorts cost $4, and the total sales was $456, we can set the equation 2t +4s = 456

So our two equations are:

t = 4s

2t + 4s = 456

Substitute t from the 1st equation into the 2nd:

2(4s) + 4s = 456

8s + 4s = 456

12s = 456

s = 38

There were 38 shorts sold.

Since we have the number of shorts, we can plug that back into the 1st equation to find the number of t-shirts sold:

t = 4s

t = 4(38)

t = 152

There were 152 t-shirts sold.

4 0

3 years ago

Please help me please

solong [7]

Answer:

what u need help with I can answer anything you need :)

Step-by-step explanation:

3 0

2 years ago

Calvin is making breakfast for his family. The pancake recipe requires 12 tablespoons of butter and 6 eggs. The ricipe makes 24

Crazy boy [7]

The ratio is
$\frac{6\ eggs}{24\ pancakes}$
which simplifies to
$\frac{1}{4}$
or 1:4

3 0

2 years ago