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eduard
3 years ago
9

An experiment was performed upon rats to investigate the effect of ingesting Alar (a chemical sprayed on apple trees to keep fru

it from dropping before ripe) upon subsequent cancer rates.
The following variables were measured:
gender (0=female, 1=male); weight (g); dose of Alar (nil, low, high); and number of tumors.
Which of the following is FALSE?

A) Gender is categorical; dose is ordinal
B) Gender is discrete; weight is continuous
C) Number of tumors is categorical
D) Dose is discrete
E) Weight is continuous
Mathematics
1 answer:
skelet666 [1.2K]3 years ago
3 0

Answer:

Option C and D are false

Step-by-step explanation:

All the mentioned option are correct in the given scenario except option C and D.

The reason is that dose is categorized as nil, low and high so, dose is categorical variable. Also, number of tumors is quantitative variable because it can be meaningfully interpreted in numerical form. The number if tumors is discrete quantitative variable.

Now consider all options

A) Gender is categorical ; dose is ordinal

This option is true because gender can be categorized into male and female and also dose is ordinal because it has order i.e. nil,low and high.

B) Gender is discrete; weight is continuous

This option is false because gender can be a discrete variable and weight is continuous variable because it is measurable. So, the statement is true.

Option C and D are already discussed an option E is discussed in option B.

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A television manufacturer decides to increase its production by 25% per month to meet increasing customer demand. The company cu
Inessa [10]

Answer:

The last graph

Step-by-step explanation:

The problem presented here is similar to a compound interest problem since we have an initial value, a growth constant and the aspect of time.

We can consider the number of television sets currently produced by the company to be our Principal amount;

P = 2000

The rate of increase in production per month can be considered as our interest rate earned;

r = 25% = 0.25

The total number of television sets y will be our Accumulated amount;

A = y

The duration x becomes our time n.

The compound interest formula is given as;

A=P(1+r)^{n}

We simply substitute the given information into the formula;

y=2000(1.25)^{x}

This is an exponential growth function since the base of the exponent x is greater than 1.

A graph of the function will be an exponential curve passing through ( 0, 2000) since 2000 is our initial value

7 0
3 years ago
In her last race, bergen swam 1,500 meters in 30 minutes.on average, how many meters did she swim per minutes?
Lelechka [254]
What you will need to do is take 1,500 which is the distance by 30 the speed to get 1500/30 which will get you 50 if you want to check your work divide 1500 by 50 and see if you get 30

Answer : 50 Meters per Minuite
4 0
4 years ago
Discount on LCD TV is $240.<br><br> Sale Price is $1575.00<br><br> What was the list price?
Vikki [24]

Answer:  The list price was $1815.00.  

Step-by-step explanation:  Given that the discount on a LCD TV is $240 and the sale price is $1575.00.

We are to find the list price.

The discount is given on the price that is listen on the LCD TV.

So, the list price will be equal to the sum of the sale price and the discount price.

Therefore, the required list price of the LCD TV is given by

L.P.\\\\=\textup{sale price}+\textup{discount}\\\\=\$(1575.00+240.00)\\\\=\$1815.00.

Thus, the list price was $1815.00.  

3 0
3 years ago
John walked x km. Sue has 3/7 walked less. Write an
maxonik [38]

Answer:

x - 3/7

Step-by-step explanation:

4 0
3 years ago
Anyone want to help me with math
Xelga [282]

Ok, I am ready, what are the questions.

Tell me in the comment section

6 0
3 years ago
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