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Deffense [45]
3 years ago
14

5) A data set with whole numbers has a low value 20 and high value of 82. Find the class width and class limits for a frequency

table with 7 classes.
Mathematics
1 answer:
Gre4nikov [31]3 years ago
6 0

Answer:

Class width = 9

Class limits = 20 - 28; 20 - 28; 29 - 37; 38 - 46; 47 - 55; 56 - 64; 65 - 73; 74 - 82.

Step-by-step explanation:

We are given;

Highest value = 82

Lowest value = 20

Frequency = 7

Formula for class width is;

Class width = (Highest Value - Lowest Value)/number of classes

Class width = (82 - 20)/7

Class width = 8.8 ≈ 9

Now,since class width is 9, limits between 20 and 82 would be done at intervals of 9.

Thus;

Class limits = 20 - 28; 20 - 28; 29 - 37; 38 - 46; 47 - 55; 56 - 64; 65 - 73; 74 - 82.

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Jen solved this math sentence: 9 X 0.989 = 89.01. How can you use estimation to show that
vampirchik [111]

Answer:

She put decimal in the wrong place.

Step-by-step explanation:

Consider the provided sentence.

9 × 0.989 = 89.01

Estimate the number 0.989 to nearest natural number.

The estimation of the number 0.989 to the nearest natural number is 1.

Now multiply 9 with 1.

9 × 1 = 9

Hence, the product should be less than 9.

Since the product of 9 and 0.989 is 89.01 which is greater than 9.

Thus, we can concluded that Jen's answer is wrong.

She put decimal in the wrong place, the required product must be 8.901

Here, you can observe that the number 8.901 is less than 9 and estimation of the number to the nearest natural number is 9.

5 0
4 years ago
Six digits are chosen randomly from the set {0,1,2,…,9} a.) What is the probability that all six digits are the same? b.) What i
Hunter-Best [27]

Answer:

a) 0.00001

b) 0.001

Step-by-step explanation:

Given numbers,

0, 1, 2, 3, 4, 5, 6, 7, 8, 9

a) If by these numbers we have to make six digit number,

So, the total ways of arranging 6 digit number = 10^6

Now, if all six digit in the number are same,

Then the possible ways = 10   ( eg : 000000, 111111, 222222, 333333, 444444... etc ),

Hence, the probability that all six digits are the same

=\frac{10}{10^6}=\frac{1}{10^5}=0.00001

b) The ways that five or more of the digits of the same = exactly 5 digits are same + Exactly 6 digits are same

∵ The ways that 5 digits are same = 10 × 9 = 90 (i.e. 111110, 111112, 111113,.....9 times, 222220, 222221,.....9 times .... etc..)

So, the number of ways that 5 or more than 5 digits are same = 90 + 10 = 100

Hence, the probability that five or more of the digits of the same

=\frac{100}{10^5}

=0.001

8 0
4 years ago
20 points!!!
Lunna [17]

Answer:

Step-by-step explanation:

A

since .75 = 3.4

and 4 is a whole number

6 0
4 years ago
Read 2 more answers
Name the polynomial and number of terms.<br> 10v4 +5v2 + 2v-5
IrinaK [193]

Answer:

Trinomial

Step-by-step explanation:

The given polynomial is a trinomial because it has three terms.

<em>10v4 </em>+<em>5v2 </em>+ <em>2v-5</em>

Hope this helps.

3 0
3 years ago
The midpoint of segment ST is M(5,2). One endpoint is S(-1, -7). Find the coordinates of the other endpoint.
Tasya [4]

Answer:

The other endpoit has this cordinadetes (11, 11).

Step-by-step explanation:

Midpoint (MD) (Xm, Ym)

Xm = 5

Ym = 2

Xm of the Midpoint:    Xm = X1 + X2/ 2

Ym of the Midpoint:    Ym = Y1 + Y2/2

<em>We can say that S is (x1, y1), so x1 = -1 and y1 = -7</em>

Then:

Xm = -1 + x2/2

5= -1 + x2/2

10 = -1 + x2

x2 = 11

Also:

Ym = -7 + y2/2

2 = -7 + y2/2

4 = -7 + y2

11 = y2

8 0
3 years ago
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