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nordsb [41]
2 years ago
14

44 students completed some homework and the histogram shows information about the times taken. Work out an estimate of the inter

quartile range. In your working you must show the lower and upper quaratiles
Mathematics
1 answer:
Vilka [71]2 years ago
5 0

Answer:

q1=11

q3= 33

Step-by-step explanation:

The data set has 44 number of students. The first quartile is 25 %  of the numbers in the data set . So

25 % of 44 = 25/100 * 44= 0.25 *44 = 11

So the first quartile lies at 11.

Similarly the third quartile lies at the 75 % of the numbers of the data set . So

75 % of 44 = 75/100 * 44= 0.75 *44 = 33

So the third quartile lies at 33.

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You have a small marble statue of Mozart that is 10 inches tall and is made of 16 cu. inches of marble. The original statue in V
vagabundo [1.1K]

Answer:

0.08 cubic feet.

Step-by-step explanation:

You have a small marble statue of Mozart that is 10 inches tall and is made of 16 cu. inches of marble.

The original statue in Vienna is 7 feet tall.

First we will convert this to inches as one relation is given in inches.

1 feet = 12 inches

7 feet = 12\times7=84 inches

Let the amount of marble used for 84 inches statue be = x

We can relate both the conditions in the following way:

\frac{10}{16} =\frac{84}{x}

10x=16\times84

10x=1344

x = 134.40 cubic inches

Now, 1 cubic inch = \frac{1}{1728} cubic foot

So, 134.40 cubic inches = \frac{134.40}{1728} cubic foot

= 0.0777 cubic feet rounding to 0.08 cubic feet.

6 0
2 years ago
What is the true solution to the logarithmic equation below? log Subscript 4 Baseline left-bracket log Subscript 4 Baseline (2 x
Luda [366]

Step-by-step explanation:

log_4(log_4 2x)=1 \\  \\  \therefore \: log_4 2x =  {4}^{1}  \\  \\ \therefore \: log_4 2x =4 \\  \\ \therefore \: 2x =  {4}^{4}  \\  \\ \therefore \: 2x = 256 \\  \\ \therefore \: x =  \frac{256}{2}  \\  \\ \therefore \: x = 128

6 0
2 years ago
Read 2 more answers
C. Assessment
Crazy boy [7]
1. B
2. A
3. A
All of theses are true
4 0
2 years ago
Terry has a large bucket of water. He uses 2.25 gal to
Novosadov [1.4K]

Answer:

I think the answer is  3.47

Step-by-step explanation:

Terry starts out with 2.25 gallons, and he uses 1.33 so you subtract these so he has .92 gallons left. He adds 4.8 gallons so you add 4.8 to .92 and get 5.72 gallons total in the bucket... If the question is asking how much change between the beginning and end I would say 5.72- 2.25= 3.47

4 0
1 year ago
26. A positive whole number is called stable if at least one of its digits has the same value
Kisachek [45]

Answer:

<h2>One</h2>

Step-by-step explanation:

Given the value 78247 a s a stable number because at least one of its digits has the same value  as its position in the number. The 4th number in the value is 4, this makes the number a stable number.

The following are the 3-digits stable numbers that appears in 78247

The first number is 824. This digits are stable numbers because 2 as a number is situated in the same place as the number (2nd position).

Hence, there are only 1 stable 3-digit numbers in the value 78247 since only a value exists as 2 in the value and there is no 1 and 3 in the value.

5 0
2 years ago
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