choosing ten students from a box that contains the names of the entire group
choosing five students each from seventh and eighth grade
choosing five female students and five male students
Answer:
Choosing ten students from a box that contains the names of the entire group
Step-by-step explanation:
If each and every unit has equal chance of being selected in a sample then it is called Random Sampling. Here choice of sample should be unbiased and independent.
Option (a) is incorrect because here selection of student is not independent as only those students are choosing who also participate in music class.
Option (b) is correct option as selection of students are independent and unbiased. Also here each student has equal chance of being selected in sample.
Option (c) can't be chosen as selection of student is done from particular cluster.
Option (d) is also incorrect as here we put condition of male and female students.
Answer: correct
Step-by-step explanation: if you distribute the 9 to the 2+x you’d get two factors 18 and 9x
Jarin covered 0.125 miles per minute of jogging
How many minutes make an hour?
The fact that 60 minus makes one hour means that the miles per minute can be determined as the distance covered in one hour divided by the number of numbers in an hour.
In other words, we can first of all, determine the miles covered in one hour as 7.5 miles divided by 1 hour, which gives 7.5 miles, in essence, the miles covered per minute is ascertained by changing the time from hours to minutes.
miles per minute covered by Jog=miles covered in one hour/one hour in minutes
miles covered in one hour=7.5 miles
one hour in minutes=60 min
miles per minute covered by Jog=7.5 miles/60 min
miles per minute covered by Jog=0.125 miles/minute
Jarin covered a mile of 0.125 every minute that he jogged
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Answer:
Step-by-step explanation:
|-1.4| + (-2.7) = 1.4 - 2.7 = -1.3 is the solution
Answer:
Yes, it can
Step-by-step explanation:
Yes, the set of numbers {5, 9, 13} can represent the lengths of the sides of a right triangle. This set of numbers follows the Pythagorean theorem, which states that in a right triangle, the square of the length of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the lengths of the other two sides.
In this case:
The length of one side is 5.
The length of the other side is 9.
The length of the hypotenuse is 13.
You can check if these numbers satisfy the Pythagorean theorem:
5^2 + 9^2 = 25 + 81 = 106
13^2 = 169
The set of numbers {5, 9, 13} does represent the lengths of the sides of a right triangle, as it satisfies the Pythagorean theorem.