SEHS topic 2

what is standard deviation?

• the amount of dispersion/ variation of a set of values

• the amount of time it takes for a person to do a task

• the amount of strength/force it takes to move something

• the amount of points needed to pass the paper 2 of SEHS

how much of the data tends to fit within 1 + or - standard deviation of the mean?

• 98%

• 25%

• 68%

• 33%

what does a small standard deviation indicate?

• there is too little data for the standard deviation to grow

• most of the data points fall close to the mean

• most of the data is spread out evenly

• the test is inaccurate

what is the coefficient of variation?

• when the mean and the standard deviation are equal

• the mean divided by the standard deviation

• the amount that 1 standard deviation changes in percentage

• ratio of the standard deviation to the mean expressed as a percentage

what is specificity?

• how specific something is

• to test something in a context-specific scenario

• how detailed our answers need to be for paper 2

• how detailed a test is

what is body composition?

• The relation of fat mass to fat free mass

• how well we eat during the day

• the ratio between fat and height

• the ratio between muscle and height

how can we measure body composition?

• BMI

• anthropometry

• water displacement testing

• with a math equation

how can we measure a person's speed?

• cooper run test

• 40m sprint

• multistage fitness test

• by measuring their BMI

what is power?

• its the same as strength

• speed + coordination

• strength + endurance

• strength + speed

what does the vertical jump measure?

• power

• height

• agility

• flexibility