C4U Weighted Averages & week in review

A student's grade in a Psychology course is comprised of tests (40%), quizzes (20%), papers (20%), and a final project (20%). His scores for each of the categories are 85 (tests), 100 (quizzes), 92 (papers) and 84 (final project). Calculate the student's overall grade.

(a)  

James worked for 12 consecutive days, during the first 6 days, James averaged $140 per day, his average wage for the next 5 days was $175, and for the last day he earned $205. How much did he earn on average each day?

(a)  

Tags

CCSS.7.NS.A.3

(a)  

Tags

CCSS.HSF.BF.A.2

Identify the population in the situation below.

A factory overseer selects 40 threaded rods at random from those produced that week at the factory, then the overseer tests their tensile strength.

• 40 threaded rods produced at the factory for the week

• All the threaded rods produced at the factory for the week

• Each rods tensile strength.

• All the threaded rods produced by every factory for the week

• threaded rods

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Identify the sample in the situation below.

A factory overseer selects 40 threaded rods at random from those produced that week at the factory, then the overseer tests their tensile strength.

• 40 threaded rods produced at the factory for the week

• All the threaded rods produced at the factory for the week

• Each rods tensile strength.

• 40 threaded rods produced by every factory for the week

• threaded rods

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

Identify the variable in the situation below.

A factory overseer selects 40 threaded rods at random from those produced that week at the factory, then the overseer tests their tensile strength.

• 40 threaded rods produced at the factory for the week

• All the threaded rods produced at the factory for the week

• Each rods tensile strength.

• Each rods conduction strength.

• threaded rods

Tags

CCSS.6.SP.B.5B