All categories

2 years ago

The heights of the bars of a histogram correspond to:

Mathematics

1 answer:

Verdich [7]2 years ago

6 0

Answer:

Frequency values

Step-by-step explanation:

The heights of the bars of a histogram correspond to the frequency values of the given data.

You might be interested in

At the Foremost State Bank the average savings account balance in 2012 was $1900. A random sample of 45 savings account balanes

lakkis [162]

Answer:

The calculated |t| = |-26.517|=26.517 > 2.326 at 0.01 level of significance

Null hypothesis is rejected at 0.01 level of significance

There is difference between mean savings account balance in 2013 is different from the mean savings account balance in 2012

Step-by-step explanation:

Step(i):-

Mean of the Population = 1900

Given random sample size 'n' = 45

Mean of the sample x⁻ = 1000

Standard deviation of the sample = 225

Null Hypothesis:-

There is no difference between mean savings account balance in 2013 is different from the mean savings account balance in 2012.

Alternative Hypothesis :-

There is difference between mean savings account balance in 2013 is different from the mean savings account balance in 2012

Step(ii):-

Test statistic

$t = \frac{x^{-}-mean }{\frac{S.D}{\sqrt{n} } }$

$t = \frac{1000-1900 }{\frac{225}{\sqrt{45} } }$

t = -900 /33.54 = -26.517

|t| = |-26.517|=26.517

Degrees of freedom

γ = n-1 = 45-1 =44

t₍₀.₀₁ , ₄₄₎ = 2.326

The calculated |t| = |-26.517|=26.517 > 2.326 at 0.01 level of significance

Null hypothesis is rejected at 0.01 level of significance

There is difference between mean savings account balance in 2013 is different from the mean savings account balance in 2012

4 0

2 years ago

a boat cost $12050 and decreases in value by 12% per year. how much will the boat be worth after 9 years

sweet [91]

Each year the boat is worth 100-12 = 88% ( or 0.88) of the year before

after 12 years the boat is worth 12050 * 0.88^9 = $3813.56

5 0

3 years ago

Answers please! I’m finding the volume and i don’t really get it

MrRa [10]

Answer:

V = 13/2

Step-by-step explanation:

When finding volume you must know the formula on doing so.

Volume = length × width × height

length = $2\frac{1}{2}$ --> $\frac{5}{2}$

width = $2\frac{1}{2}$ --> $\frac{5}{2}$

height = $3\frac{1}{4}$ --> $\frac{13}{4}$

mixed number --> fraction

$V = \frac{5}{2} x \frac{5}{2} x \frac{13}{4}$

$V = \frac{25}{4} x \frac{13}{4}$

$V = \frac{325}{8}$ or $\frac{13}{2}$

3 0

3 years ago

Use division to change 4/5 to a decimal

vesna_86 [32]

To change a fraction to a decimal, simply divide the numerator by the denominator. The numerator is the top part of the fraction, while the denominator is the bottom part of the fraction.

4 ÷ 5 = 0.8

Thus, $\frac{4}{5}$ as a decimal would be 0.8

4 0

3 years ago

Read 2 more answers

Use a graph to slove the equation 2x+3=4

ANTONII [103]

Answer:

x=0.5=1/2

Step-by-step explanation:

5 0

2 years ago