Sabrina Alexis. Probability is a way to measure the chances that something will occur in relation to the possible alternatives. There are many.

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Presentation transcript:

Sabrina Alexis

Probability is a way to measure the chances that something will occur in relation to the possible alternatives. There are many reasons why corals are dying. For example: Coral bleaching, which is caused by elevated sea surface temperatures due to global climate change Rising levels of CO2 Over fishing (bomb and cyanide fishing)

Coral reefs need the water to be between degrees Fahrenheit. If the temperature is even 1 degree more or 1 degree less the coral reefs will die. The temperatures are going up because of global warming. Coral bleaching is when the water is too warm, corals will force out the algae (zooxanthellae) living in their tissues causing the coral to turn completely white. This is called coral bleaching.

Variance is used in statistics to describe how far away your data is from the mean. This is the formula for variance:

A Theoretical Distribution Curve (TDC) is a theoretical or ideal picture of a distribution based upon random sampling. Example:

A T-test is an equation used to determine whether there’s a significant difference between two group means. The t-statistic is designed to test if the is a major difference between the means of the independent samples. This is the formula pool variance: This is a T-test:

A chi square test is used to see if there are any significant differences between data sites and sources. Today in statistics we played a turtle game to se if there was a difference in the survival rates of turtles at different beach sites.

Sea turtles have many predators such as: Raccoons Crabs Humans And birds Sea turtles are also injured by marine debris. If they eat plastic bags (which somewhat look like a jellyfish) then it will stay in there stomachs and they are not able to digest it. Soon they will die because it is stored in their stomachs for a long time.

C16/217/14/1223T16/217/11/1220 C26/217/14/1223T26/217/14/1223 C36/217/14/1220T36/217/14/1223 C46/217/14/1223T46/21DIED C56/217/11/1220T56/217/14/1223 C66/217/11/1220T66/217/14/1223 C76/217/10/1219T76/217/14/1223 C86/217/14/1223T86/217/14/1223 C96/217/14/1223T96/217/12/1221 C106/217/14/1223T106/217/14/1223 C116/217/14/1223T116/217/14/1223 C126/217/12/1221T126/217/14/1223 C136/217/12/1221T136/217/11/1220 C146/217/14/1223T146/217/14/1223 C156/217/14/1223T156/217/14/1223 This data shows that there is no difference between the treatment and control group.