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2 years ago

A local hospital tracked the blood type and gender of the patients they saw one day. Which is a fair statement?

2 answers:

3 0

Here's the choices...Cause i don't even know the answer to this question...

A)Over half of the patients seen on an average day had blood type O.Eliminate
B)Less than 1% of the patients seen on an average day had blood type AB.

C)Double the number of patients seen on an average day had blood type O than blood type B.

D)On an average day they will see about the same percentage of patients with types A and B.

Naddika [18.5K]2 years ago

3 0

Answer:

The relative frequencies for blood type are:

A: 0.277

B: 0.256

O: 0.420

AB: 0.046

The only statement that is correct is On an average day they will see about the same percentage of patients with blood type A as blood type B.

Step-by-step explanation:

I TOOK THE TEST

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A spinner is divided into 12 equal parts. The probability of spinning an x is 3/4

stich3 [128]

I think it’s a or c

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2 years ago

Read 2 more answers

A steel company sells 48 tons of steel each year.

ddd [48]

Answer:

16 tons

Step-by-step explanation:

To solve the first step is to change years to months because the time periods are in different units. There are 12 months in 1 year. This means that the company sells 48 tons over 12 months. 4 months is the equivalent of 1/3 of 12 months. This means that we can find the amount sold in 4 months by dividing 48 by 3. 48/3 is 16. Thus, the steel company sells 16 tons in 4 months.

Another way to find the answer is to find the unit rate. The unit rate is how many tons are sold in 1 month. Find this by dividing 48 by 12 because this represents the sales of 1 month. 48/12=4, this means that in 1 month, 4 tons of steel are sold. Next, multiply 4 times 4 to find the amount of steel sold in 4 months. 4 times 4 also gives you the same answer of 16.

6 0

2 years ago

Starting in the first square of her quilt, Lu lined up her toy designs in rhis order: plane, car, fire truck, helicopter, crane,

Lady bird [3.3K]

Fire truck because there are 6 designs and 6x2=12 but there are 3 left so it is plane, car, then firetruck

6 0

2 years ago

The grades on a language midterm at Oak Academy are roughly symmetric with = 67 and 0 = 2.5. Ishaan scored 70 on the exam. Find

rodikova [14]

Answer: 1.2

Step-by-step explanation:

Let X denotes the grades on a language midterm at Oak Academy.

As per given ,

X follows normal distribution ( because it has symmetric graph)

$\mu=67,\ \ \ \ \sigma= 2.5$

Formula for z : $z=\dfrac{X-\mu}{\sigma}$

For X = 70, we have

$z=\dfrac{70-67}{2.5}=\dfrac{3}{2.5}=1.2$

Hence, the z-score for Ishaan's exam grade = 1.2

3 0

2 years ago

A recipe for oatmeal cookies makes 24 cookies. The recipe calls for 2 1/2 cups of flour. Penny wants to make 3/4 of the recipe.

barxatty [35]

Answer:

Penny needs $1\frac{7}{8}$ cups of flour to make 3/4 of the recipe.

The recipe will make 18 cookies.

Step-by-step explanation:

We have been given that a recipe for oatmeal cookies makes 24 cookies. Penny wants to make 3/4 of the recipe.

To find the number of cookies that will 3/4 of the recipe will make, we need to find 3/4 of 24 as shown below:

$\frac{3}{4}\text{ of recipe}=24\times \frac{3}{4}$

$\frac{3}{4}\text{ of recipe}=6\times \frac{3}{1}$

$\frac{3}{4}\text{ of recipe}=18$

Therefore, the recipe will make 18 cookies.

We are also told that recipe calls for 2 1/2 cups of flour. To find amount of flour needed for 3/4 of the recipe, we will multiply 2 1/2 cups by 3/4 as:

$\text{Cups of flour needed to make 3/4 of recipe}=2\frac{1}{2}\times \frac{3}{4}$

$\text{Cups of flour needed to make 3/4 of recipe}=\frac{5}{2}\times \frac{3}{4}$

$\text{Cups of flour needed to make 3/4 of recipe}=\frac{5\times 3}{2\times 4}$

$\text{Cups of flour needed to make 3/4 of recipe}=\frac{15}{8}$

$\text{Cups of flour needed to make 3/4 of recipe}=1\frac{7}{8}$

Therefore, Penny needs $1\frac{7}{8}$ cups of flour to make 3/4 of the recipe.

7 0

2 years ago